Selection of candles on cars. Selection of spark plugs on a car brand: online services. Selection of internal design

Selection of spark plugs - a complex process, the subtleties of which you need to know by car owners. Problems in these details can lead to car malfunctions. Many motorists are trying to dry or clean iridium and other products, but in case of their failure, only timely replacement Details. To choose a suitable product, you need to take into account some nuances.

When choosing new components, attention should be paid to the size, material manufacturing material, condition of wires, a calil number, resource, features of operation and value of a particular product.

Some of the best products rightfully considers products of DENSO and NGK brands, which include iridium, yttrium and platinum products. In addition, these manufacturers produce incandescent candles and high voltage wires.

The main parameters that need to be considered before choosing such a product - geometric dimensions and a calil number of spark plugs. It is worth considering each of these parameters in more detail.

Candle size

When an inappropriate amount of this product may have a number of problems. For example, an insufficient value of the value is not screwed into the engine slot, so the electrodes will be located too far from the combustion chamber. If the dimensions exceed the permissible, the probability of the piston strike on the electrodes appears. Therefore, it is necessary to correctly select the dimensions of the part, which must be listed in the instructions for the vehicle. NGK and DENSO products are available in a wide range of dimensional variations. Under these brands, incandescent candles and high voltage wires are made.

Kalil number

This parameter reflects temperature Range Work details. The more this indicator, the more colder products, which allows it to exploit it in a high temperature medium.

The lower the value of the calil number, the "hot" part, it may overheat in the conditions that can be significantly reduced to its use, which can significantly reduce its life.

In the instructions for the car it is indicated which values \u200b\u200bof this parameter are permissible. The table of analogue of spark plugs taking into account these parameters includes many positions to facilitate the choice, including NGK and DENSO. These brands also include incandescent candles and high voltage wires.

Types of structures

The classification of spark plugs assumes the presence of several types of products. In the car typically use spark details of the classic design. They are characterized by the presence of a ceramic hull and a lower metal part with a thread. The simplicity of design determines the low price even on new products. Such a product can improve the use of the engine by reducing power consumption. The minus is a small resource, that is, a short time of use.

Multielectrode details

A feature of these parts is the presence of several side electrodes, which are located around the central one. Their quantity may differ. The principle of obtaining sparks is also different from the traditional. If one of the side electrodes wear out, the spark from the wires is transmitted by means of a working electrode, which increases the use of such a part, that is, its resource. The use of multi-electrode products allows you to increase the engine power index in the car. At the same time, fuel burns better, which is also the advantage of the operation of the product, the number of electrodes in which is increased. Such products are produced under the brands of DENSO, NGK and others. Under this brand also produces high voltage and incandescent candles.

Platinum and iridium products

Details that are made from iridium and platinum are distinguished by the fact that they are able to withstand large temperature loads. Platinum and iridium parts cause a large capacity of the car, and when the sparks from the wires are sparking, the part is self-cleaning due to the removal of a car from the surface of the electrode.

Forkarny details

Such varieties of the product is characterized by the forkar design of the electrodes. When the pulse is applied from the wires, there is a breakdown, localized between the surfaces of the electrodes. At the same time, the plasma bunch in the combustion chamber occurs. During this, the voltage of the fuel mixture is launched. The combustion products enroll in the engine cylinders at high speed.

It is worth noting that the ignition of the mixture has a bulk character, and not the point, as in the details of the classic design. The speed and completeness of the combustion of the fuel mixture increases, the engine power increases and reduce the toxicity of combustion products.

Produce such parts under the brands NGK, DENSO and others. Manufacturers produce many varieties of spark plugs, which include such famous brandslike NGK and DENSO. Analog table can help with a choice of a suitable part for a particular car. When a car's configuration with a diesel engine may need incandescent candles, which are also produced under these brands.

Before choosing these details, you need to consider several rules:

1. The final choice of spark plugs depends on what car they will be used and what loads are assumed.
2. If we talk about the terms of use, you can divide products into three types. Yttrium parts are relatively inexpensive, but they need to be changed in 25 thousand mileage kilometers. Iridia can last twicear longer. The most wear-resistant products are platinum, but they are distinguished by the highest cost. The resource of the part is the most important parameter during operation.
3. Opportunity contactless ignition. Details with which it is possible to implement this, are able to ignite the combustible mixture using the spark charge moving between the electrodes. As an example, you can bring new NGK and DENSO products.

The process of selecting spark plugs and for foreign cars and cars domestic production Must be carried out with special care. If you choose correctly, the engine power, and the duration of its uninterrupted operation will be optimal. To choose new spark plugs, it is necessary to take into account the estimated intensity of use.

The difference between the fuel ignition process in diesel engine Ensures the use of incandescent candles.

In a car using diesel fuelStarting the engine is due to the inclusion of the incandescent system. It provides pre-warm, which creates optimal conditions for running the motor. There are many grades of incandescent candles, including new - NGK and DENSO.

The purpose of the ignition candles, regardless of the volume of the engine, is the transmission of high-voltage charge, which is necessary to ignite the fuel-air mixture in the cylinders. If SZ for some reason fails, it will lead to unstable work Motor as a whole, so every car owner should know how to change the devices and which is better to choose. How is the selection of spark plugs in the car and which types of SZ can be found on sale - read it below.

Before choosing a SZ for your car, we recommend you to familiarize yourself with the main parameters of the devices. To begin with, consider their views.

Table interchangeability of the main types of SZ

Detailed manifold

1. Standard SZ. In this case, the central electrode is made of metal, which should be heat-resistant. The service life of such parts is usually not particularly high, if compared with other species. However, this type of SZ is considered one of the most common and sought-after.
2. Multielectrode SZ. In such devices, the design is supplemented with side electrodes, their quantity can be different, ranging from two and higher. The increased number of electrodes was reflected on the service life of the details as a whole. In contrast to the standard SZ, in such details the spark makes it possible to change its direction, as a result of which the electrodes are combined to a lesser extent.
3. SZ with V-shaped cut on the central electrode. Let even the form of the electrode changed, but this does not affect the service life of the device as a whole. However, this contributes to a better combustion of a combustible mixture, which in turn affects the consumption of fuel and decrease in exhaust gases.
4. Platinum SZ. Many motorists today stop their choice on platinum details, since they are electrode, although they have a smaller thickness, is able to provide better spark power. And this, in turn, provides more high power Motor as a whole. According to many manufacturers, the service life of platinum parts can be increased to 100 thousand km. Thanks to the small thickness of the electrode, the device provides low sparking voltage, fuel savings, as well as a stable gap throughout the life.
5. Iridiyev, in such devices from iridium, a tip is made. To date, this type of SZ is considered one of the most expensive and reliable, since Iridium is considered one of the hardest metals. It optimally opposes the formation of corrosion and various electrical discharges. The electrode thickness in this case is about 0.6 mm.
6. Forkarmed SZ not so long ago appeared. In such candles, the electrodes have an interesting design made in the form of a forkamer. When the high-voltage discharge is applied to the device in the gap, a breakdown is formed, which contributes to the deposition of a plasma cloth under pressure.

Photo Gallery "Types of SZ"

Caliv number of spark plugs

Buying details, initially pay attention to such a parameter as a calic number. This value is the designation of the time segment, after which the part will be able to give a voic ignition. Moreover, if the length of the thermal cone of the insulator element is less, this will ensure the most effective heat removal from the SZ. If you do not know which it is better to choose a NW, then first of all you should familiarize yourself with the service book to the car, where all the basic parameters of the selection should be indicated.

It is always necessary to remember that the use of components with a threaded 11 mm is not allowed in engines that are designed to operate with extended threads and vice versa. A part of the part that is installed in the motor cylinder is a source of gawal voltage, respectively, it may cause damage to the electrodes. Alternatively, under the extended device, you can install a rubberized gasket, but this option will prevent damage to the part only for some time (the author of the video is NRG61RUS channel).

Number of electrodes

As mentioned above, automotive SZ can have a different number of electrodes. The design of one-electrode details involves the presence of only one central and one side electrode. In multi-electrode devices, the number of lateral electrodes can be different. In such devices, the charge education is carried out between the main and lateral components of the structure.

One of the main advantages of the latter is that the electrode elements on the device wear out evenly. That is, if one of the components for some reason fails, it will be able to replace it with another, efficient electrode. Ultimately, these elements will change each other when you fail, while each of them breaks down (the author of the video for cleaning the SZ - channel is vailing together).

Rating SZ on brands and manufacturers

1. SZ Eyqiem 77 00 500 168. These are original devices designed for Renault K7M engines, respectively, their operating parameters and characteristics are optimally adapted to these motors. One of the main characteristics of the parts is a large departure of the electrode, which ensures the most optimal and stable ignition of the combustible mixture, even if it is unevenly distributed over the cylinder. In addition, this solution contributes to more improved ventilation of the device, which also ensures the stability of the ignition.
   In accordance with the reviews, these candles are really as good as the manufacturer describes them. In fact, the resource of the operation of the SZ depends on the state of the power unit, as well as the quality of the gasoline used. The service life of Eyqiem 77 00 500 168 is on average in the area of \u200b\u200b40 thousand km of run.
2. DENSO K20TXR. In such details, the electrodes are coated with nickel, which contributes to more sustainable SZ operation, an increase in their service life, as well as immunity to erosion. If you look at these SZ through a magnifying glass, you will see that the side elements are installed as soon as possible, not even visible traces of soldering and distortion. Accordingly, it contributes to the improved formation of the spark and, accordingly, more stable operation of the motor, which in turn affects the consumption of fuel. The only drawback is considered high price devices.
3. BERU Z193. SZ of this brand is characterized by affordable cost and sufficiently high service life. On the market you can find many different species SZ BERU, but this option is considered one of the most optimal for many modern motors. Due to the fact that the design of the parts itself is one-electrode, their service life will be lower compared to the devices described above.
   Devices have a small spark gap, constituting only 0.9 mm. And although this largely facilitates the launch of the power unit, if car battery There will be a nasty, but also it helps to reduce the power of the spark. If in addition to all you will refill low-quality fuel, the use of BERU can cause ignition passages, in particular, dVS work under conditions of large loads. In addition, due to the fact that the electrode is a bit recessed, it contributes to the deterioration of the spark gap ventilation, respectively, this may affect the ignition of the combustible mixture.
4. Bosch. Bosch brand has long established itself on the market as a manufacturer of high-quality parts and components. As the results showed the results of numerous tests, the products of this manufacturer in quality of performance are not inferior to even market leaders. At the candlelight, the electrodes are soldered quite smoothly, while the marking on the design is applied smoothly and without distortion. The presence of the latter may indicate that you have counterfeit SZ in your hands.
   Of the main advantages of such devices, high service life should be highlighted, as well as a fairly low price. As for the shortcomings, this is a huge amount of fakes in the domestic market.
5. NGK. Iridium devices, of course, are the highest quality and efficient, and their service life will always be higher, compared with traditional SZ. Their operation, according to many specialists, is relevant to newer power aggregateswho do not "eat" oil. If you only use high-quality fuel to refuel the car, the service life of NGK can be 50 thousand km of run.
   From the main advantages of devices, a stable formation of sparks should be allocated, as well as a fairly high service life. As for the shortcomings, this is a high price, but as you know, you always need to pay for quality.

Remember: Candles need to put such as the car manufacturer recommends!

Over time, the NW can form a nagar, contributing to their less efficient operation - in the video below detailed instructions Upon removal of nagar with a description of all the nuances (the author is the Channel of the RF Autolectrician).

How to choose the right spark plugs: selection by car

• 1 Ignition Candle - What is it?
• 2 Constructive features
• 3 principle of choice
• 4 Resource candles
• 5 Selection of vending candles on a car brand

Ignition Candle - What is it?

Constructive features

The above-mentioned device of the classic ignition candle was described, there are other types:

• - Multielectrode: the main difference in the number of lateral contacts. The main advantage of candles of this type is their resource, of minuses - ignition pass is possible.
• - Platinum: At the central and side electrodes, platinum attack are located, sometimes another drag. Metal. They are less susceptible to the formation of Nagara at work points, ignition skipping is almost minimized. Candle resource up to 50 thousand kilometers according to most manufacturers.
• - Iridiev: The central electrode is made of iridium, the side electrode has a U-shaped groove. The service life is higher than that of platinum, sparking is almost perfect. Of the minuses you can mark a rather high price.
• - Forkarm: candles of fundamentally different design. They are installed in the depths of the chamber chamber.

Principle of choice

In Russia, candles are released with numbers 8, 11, 14, 17, 20, 23 and 26. The lower the value, the "colder" the candle.

Imported there is no single scale. To prevent problems with the ignition system, it is best to familiarize yourself with the instructions in the car's service book, there is information about what type, brand and model are recommended, and you can avoid many trouble with the engine. Do not follow the instructions have a good chance to get on overhaul Engine, and this is already a very sad story, including in finance. Thus, the selection of spark plugs on the vehicle brand is the most correct option.

Resource candles

Normal in this case, the Nagar will be from coffee to light brown. Black Spark plug Cause - an overly-enriched mixture, white flare on the ignition candlelight - a depleted mixture, red - low-quality fuel with additives to increase octane number, erosion - the candle worked for a reasonable service life, the ash - oil in the combustion chambers (lay the rings or cylinder generation).

But the ignition system consists not only from the candles, but also from the coil or the ignition coils and high-voltage wires. It is through them that the high voltage is supplied. They must be checked for integrity and resistance. Resistance value can be easily found in general access. If there is a breakdown on high voltage wiresBut the spark does not arise on the plates electrodes and the corresponding portion of the fuel and air mixture will not ignore. This will be expressed in the "Trojoint" of the engine. Now many manufacturers try to strengthen the spark. And this is even good on the one hand - uniform combustion, less emissions of harmful substances, but the stronger the spark, the less a durable product you will receive, and not bypass the temperature erosion.

Selection of spark plugs on a car brand

Let's talk a little about the most common grades of candles.
Iridium spark plugs DENSO selection by car
The range here is quite extensive. In order to choose candles DENSO. Right start from the catalog on the official website. You will be offered a directory and you can choose exactly the model that is most suitable for your engine.
Iridiya candles ignition NGK.
There is no less an assortment here. Like all manufacturers, the company has a directory on which you can pick up the NGK spark plugs by your car. The range is large enough, find optimal option It will not be difficult.
Spark plugs brisk
This company has existed since 1935. During the existence of the company accumulated enormous experience in the design and manufacture of spark plugs. The catalog is also posted on the company's official website.
Bosch spark plugs
Bosch spark plug candles can also be carried out on a car brand via the company's online catalog. Candles have their own indices for which the product specification can be defined.

The most common cars in Russia and candles to them

Now we can say the ignition system reached the maximum of their evolution. In this regard, many even famous manufacturers are forced to make marketing moves, in fact calling old solutions with new terms. Spark plugs do not have a single label, but many are interchangeable. There are special tables for the selection, but still the main characteristics are the size, a gauge, the gap between the electrodes.

It is best to set exactly those options that the car manufacturer recommends.

Many motorists try to buy more expensive candles, such as platinum or iridium and use on cars of old years of release. Of course, it will not be worse, but there will be no additional advantages, this is due to the engine design. This purchase will simply be economically not appropriate. If cylinders are worn, for example, the oil will be without a difference from what metal is the electrode is made. And as an additional recommendation, add, refuel, if possible, only on verified gas stations. The quality of the fuel depends on the condition of the candles, including.

And how do you pick up the spark plugs for your car?

How to choose spark plugs for a car?

The competent selection of spark plugs on the car is necessary to obtain the maximum return of the engine and the operation of the motor. In a huge number of models and manufacturers, it is sometimes difficult to figure out, so the advice on the competent selection of candles will not be superfluous.

Multielectrode Ignition Candle

Selection of spark plugs

Spark plug parameters important to install in the motor are the diameter and length of the thread shank, the size of the hexagon for wrap. Strict requirements are presented to carving, and the sizes of the hexagon can vary in some cases.

Geometrical parameters

The diameter of the thread corresponds to the one that is cut into the block head, otherwise the candle will not fail, or fall into the hole. The length of the thread is equal to the correct and safe operation: when applying a shorter, we will take the spark interval inside the hole in the cylinder head (GBC), the gap ventilation between the electrodes deteriorates - ignition interruptions are likely. Thread Threads, which remained free, are covered by Nagar, and the wrapping subsequently "correct" candle will damage them, worsen the reliability of fastening and tightness. Similarly covered by nagar and thread, if it is longer than the desired - the thread in the aluminum head will suffer already when turning. On modern motors with compact combustion chambers, the candle with an elongated threaded part rests on the valve when opening or in the piston, so that the motor with such a candle will not be able to work.

Marking NGK BPR6es.

Each manufacturer has its own marking, so the selection of analogues should be produced, first deciphering the labeling of standard candles, then select the desired encoding of another manufacturer. If the car is regularly worth the NGK BPR6ES candles, the first letter B indicates that the diameter of the thread is 14 mm, and the length describes the letter E - 19 mm.

Marking of domestic candles

As for the hexagon, then it is necessary to follow its size only in motors with dual heads (DOHC), where the candles are recessed into wells - the larger hexagon will not enter the well. In motors where candles stand on the side of the head, there is no fundamental value, whether the size of the hexagon corresponds to regular candles, except for the second candle wrench.

The design of the setting assembly of candles includes the type of seal - the metallic ring-gasket was originally used, which are compressed when tightening. On 16-valve engines, where, due to the small diameter of the skirt, the gasket would not have enough area, a conical seal is applied - the candle applies itself, presses the conical part of the skirt in the chamfer on the hole in the head. New candles must correspond to the type of compaction by standard - candles with a cone are not sealed in the heads, where the hole is calculated on the use of the rings-gasket.

Candle replacement table of various manufacturers

Table of replaceability of domestic candles A17DV and A17DVR-10 on analogues of imported manufacturers

Kalil number

The calil number determines the cooling ability and supports the desired operating temperature of the electrodes when the engine is running. The calil number of new candles corresponds to the caliper number of standard, otherwise the engine will either begin to work with interruptions (too "cold" candles will be chopped by nagar), or will be detonated (too "hot" overheat).

The marking of a calil number has its own, and may even differ in the direction of growth in numbers. Therefore, when choosing a candle, focus on the consolidated table:

When you choose the candles of other manufacturers, find the matching tables or use the manufacturer's catalog by car brands.

Construction of electrodes

Video: How to pick up candles to a foreign car

Unlike geometric sizes and a calil number, the design of the electrodes varies. What is in this case to pay attention?

First of all, on the departure of the electrodes relative to the skirt. On Motors with multiclap heads, where the candle is standing in the center of the combustion chamber perpendicular to the piston, candles with a small departure are used - sometimes the central electrode is recessed inside the skirt. This is necessary primarily for the layout reasons - less likely to "meet" with piston and valves. Two-pant heads use candles with a large departure of electrodes. What is it for?

On the same candles we see two side electrodes. Such constructions that contain 2-4 side electrodes are designed to increase the candle resource (and not to receive a "multiserry" ignition, as some believe) - when due to wear, the gap between the working pair is increasing, the spark beats between the neighboring, where the clearance is less. There are also minuses in such candles - additional side electrodes worsen the ventilation of the spark gap, create an aerodynamic shadow.

Therefore, there is no point in increasing the number of lateral electrodes - the resource of the candles depends on the quality of gasoline, but some deterioration in the operation of the motor with multi-electrode candles is possible on motors where the conditions of ignition and are so far from ideal - when Euro-4 firmware is placed on engines designed yet In the 80s and unable to adequately work with conceded mixtures initially. When changing regular candles on multi-electrode, we discover the growth of vibrations on idling: Just affect the degraded ventilation of the spark gap.

Clearance between electrodes

Video: Alphabet spark plugs for inexperienced and self-diagnosis

Even in one series of spark plugs, there may be several options that differ in the gap. At the same type of candles NGK BPR6ES-11 and BPR6ES-12, the difference in the gap: in the first case it is 1.1 mm, in the second - 1.2 mm.

The only case when can be separated from the standard gap - this is a replacement of spark plugs on iridium: electrodes ensures confident flammings of the mixture and with a smaller gap, moreover, these candles reduce the load on high-voltage ignition chains, since the gap between thin electrodes makes itself easier. Therefore, manufacturers iridia candles Indicate functional analogs of candles with gaps 1.0-1.2 mm Iridium with a 0.8 mm gap.

Unconventional structures

Always want to get from the larger engine, and many use it: remember at least recently advertised candles "Bugets", allegedly providing unrivaled efficiency, increasing power and so on. The conservatism of world spark plugs manufacturers are not inertia of thinking: improving decades of construction is difficult to improve decades.

The breakthrough was at one time the appearance of iridium and platinum candles was the appearance of iridium and platinum candles - they are superior to the usual, but the price is also distinguished.

Spark plugs - selection by car in different ways

The stable operation of modern vehicles in a large extent depends on the spark plugs. In the competent selection of fuel in the motor, the car braids the most effectively and efficiently, which makes it possible to reduce fuel costs.

1 Kalil number - Let's start with the main

The spark plugs are necessary for ignition in the cylinder of the air-fuel mixture of the air-fuel mixture at a certain time interval. The device you are interested in are located with special electrodes, between which the spark occurs when the electric power voltage passes. It provides the ignition of the mixture. The correct work of the candles depends on a number of factors. We highlight the main of them:

1. Compliance with the characteristics of the candles and motor capabilities of the motor vehicle.
2. Operating indicators of materials from which the ignition devices are made.
3. Features of the candle design.

A key characteristic of devices for fuel mixture is considered a calic number, which is an integrated temporal value. It defines a certain period, after which arson takes place. Kalil number for products different types It is installed individually and depends on the indicators of their heat transfer. As a rule, it is equal to 500-600 ° C. Car manufacturers advise to pick up candles of certain types, taking into account the technical descriptive engine.

Here you need to know the following. Select the spark plug is necessary so that it does not appear on it at work. In the combustion chamber of the car motor, there is always a small amount of oil. It spontaneously enters the insulator and electrodes. If the calil number is in the recommended temperature range, the oil burns without a residue. Due to this, the ignition device self-cleaning and functions without breakdowns for a long time.

2 Construction, dimensions of ignition devices - how many electrodes need?

The sizes of candles have no less value than their calil. If you purchase and install products with unreasonably large length, they will be overdressing. And short candles in relation to the combustion chamber will be too far. In both cases, the inflammation device will not be able to qualitatively perform its functions.

Also, the spark plugs differ from each other with their design. Most often, modern motorists are dealing with devices that have a cup of carvings and metal housing. Such products are considered standard. In them, the spark arises between the central and side electrodes. The main advantage of such structures is a low price, disadvantages - the impossibility full use Engine technical capabilities and low lifespan.

Devices with a central (one) electrode and four (or three) side are considered more efficient in work. In them, the spark arises strictly in the center of the candle. It provides high-quality and rapid ignition of the air-fuel composition. In addition, if one of the side electrodes fails or contaminated, the arson of the mixture will still occur. In such cases, the spark simply jumps over to the adjacent element.

Devices with 4-5 electrodes increase the environmental characteristics of vehicles and allow them power installations Show all your power potential.

Another point. Multi-electrode designs B. last years Become more and more subtle. The standard cross section of the electrodes is 2.5-3 cm. But recently it has been proven that the spark is the more powerful than thinner electrodes apply. This was the reason for creating products with a thickness of less than 2.5 cm. At the same time arose new problem. Thin electrodes made from nickel (it is most often used for the manufacture of candles), unable to withstand increased loads. Manufacturers had to look for new materials. About this next.

3 Materials for the manufacture of candles - what better?

Classic electrodes are made of nickel alloys. They cannot be used to create contemporary products due to the above. Nickel designs have a number of operational minuses. They are:

• hammer cold launch motor;
• tend to pour in the cold season;
• require frequent replacement.

Platinum candles are changing every 90-100 thousand km. Autoexperts advise them to put them on the power units of complex configurations. In this case, the high cost of devices will pay off their durability and trouble-free operation. On old Soviet and modern russian cars Such candles set no sense. You just spend money in vain.

Iridium candles are even more expensive. They increase the power of the car, guarantee the quickzzi of the fuel mixture, they have economical fuel consumption. The need to replace such structures occurs no more than in 80-100 thousand km of mileage. Products from Iridia have proven themselves on machines with conducted engine turbine.

4 Selection of components for sparking - Standard techniques

On candlelight russian manufacturers Always indicate the magnitude of their thermal cone. In theory, we need to purchase a device with the same labeling and install it on the car. Unfortunately, this technique does not work. The knowledge of the magnitude of the cone does not allow you to truly qualitatively choose products for a particular engine model and vehicle brand. The problem is solved if we are talking about cars of the last 10-15 years of release (both import and domestic). Manufacturers in the manual for their Iron horses clearly indicate, what candles can be replaced by factory components in case of failure.

And what to do the owners of old vehicles and cars that do not have instructions for use? Acquire required candles Ignition in this case is difficult, but you can, the selection of products by car do this:

1. Unscrew the old product from the motor.
2. We find labeling on the body of the part.
3. We go to the auto shop and select the appropriate element on the index.

If the desired component model is not, we ask the advice from sellers consultants. Perhaps they will be able to tell than replacing the device you need. Here you have to hope for their professionalism and good knowledge of the range of autocroducts.

Note! The described method of selection of inflammation devices is suitable only for cases when you are exactly sure that the car has the right candles.

5 Choose and acquire spark plugs in a new way!

Modern technologies made the life of motorists much easier. With the help of online services, they may pick up and order spark plugs without leaving their cozy home. The network has a lot of special sites on which a variety of devices for obtaining sparks are sold. There are among them and unique services, where the consumer can independently choose components, knowing the VIN code and the volume of the motor, as well as the brand of its car.

A lot of drivers are charged and the purchase of ignition devices on the NGK Internet site (https://www.ngk.de/nc/en/podbor-produkcii/). An understandable interface and a huge site database allows any vehicle owner to choose the detail of the car's brand. More simple option The search for the desired item does not exist!

NGK is a very convenient, but not the only online service available to Russian motorists. We can also use the Bosch electronic directories (http://bishka.ru/catalog/svechizazhiganija/) and Denso (http://www.denso-am.ru/elektronnyi-katalog/). They make it possible to pick up candles on the car brand, companies producing spare parts, type and component models. A child will cope!

Regular replacement of ignition devices - a pledge of long-term operation of the car. Do not be lazy to perform this procedure. And then the machine of the car will delight you with its stable operation at maximum power. And O. big flow Fuel you forget forever!

How to choose a spark plug on a car brand

The operation of the spark plugs in the car becomes noticeable most often after a long use of poor-quality fuel. Gasoline consumption increases, the motor is becoming less direct, sometimes starts to told. In these situations it is worth conducting primary diagnosis of candles. In the event of identifying problems with this part of the car electrical system, you need to go to the store and make the selection of spark plugs on the car brand.

Correct work of candles in the car

The problem of automotive spark plugs is to ignite the fuel mixture inside the engine cylinders. This happens after the filing of high voltage to the candlestones. The correct uninterrupted operation of the device in the system depends on several factors:

• structural parameters;
• used for the production materials;
• the ratio between the characteristics of the product and the motor.

To properly choose the spark plugs on the car brand, it is necessary to consider the recommendations of automakers for each model of the vehicle.

Ignition candle device

In auto operating instructions, you can often find a list of analogues that were produced at the time of manufacture of the machine. Also, there are lists on the official websites of automakers.

You need to know that in addition to geometric characteristics, the driver is obliged to be guided by a calil number for candles.

Its value is associated with the efficiency of material heat transfer and thermal modes of the candle. A larger digital indicator of this parameter corresponds to the increased temperature values \u200b\u200bin which the part is maintained. This means that for the forced sports motor, it is necessary to select the maximum value of the gallop number of candles, otherwise they will be subjected to the ending overheating.

Selection of experienced way

The right choice of spark plugs on a car brand can be done using simple actions. From your own car alternately unscrew the candles from the nests and record the visible parameters of the product.

Candles with marking

In any specialized car on product packaging, the same parameters are indicated. A competent seller-consultant will help to deal with marking or offer a similar item. We select the appropriate product and install in place.

This option will be suitable if the car owner is confident that no incorrect change in the ignition system has not been carried out. Owners of domestic machines, the plant facilitated the work on the search, making the table of interchangeability. In addition to local products, foreign products included in them.

Selection of internal design

Deciding with geometric characteristics and a caliling number, it is worth paying attention to structural features. In car candles, the main difference in this parameter is noticeable in the electrodes.

One electrode

The classic design assumes the presence of one electrode. The part of this type consists of a ceramic hull located in the upper part and a metal cylinder with carvings. The discharge of electricity forms a spark between the central electrode and the side.

Candles with one electrode

External changes that relate to such a design were experiments with the diameters of the electrodes and the length of the threaded part.

The positive qualities of this option consist in low cost. The disadvantages include a relatively short service life and the inability to complete the potential of the power plant.

Popular models in this area are NGK BRP6E, DENSO W20EPR-U, BOSCH WR7DC, CHAMPION RN9 YCC. The latest copper side electrodes are built into the latter, which makes it possible to increase the resource of developments almost 2 times due to the reduction of the operating temperature.

In NGK, we decided to split the tip of the central electrode. Such a move was able to extend the work of the candles, because the spark will go to the metal part with a smaller Nagar. Accordingly, even if one "tongue" does not work, then the second, cleaner, will miss the discharge. A similar principle was adopted in DENSO, but "rapid" side contact.

Several electrodes

Attempts to split the tip of the electrode naturally resulted in the manufacture of candles with several such elements. As a result, candles were created with 3-4 lateral independent straight electrodes. Externally, the working head began to resemble a blurred bud.

Several side electrodes

The design has received many advantages, because the spark did not block the side electrode, which helped it easier to ignite fuel mixture. Sparking was formed from interaction with any clean contact.

With this location, the fuel managed to heal faster and completely thoroughly, so emissions were cleaned, and the car's power is higher.

The advantages include an affordable price, which is slightly higher from the cost of a classic manufacturer.

Such a design is possessed the following models: NGK BUR6ET, BRISK DR15TC1, BOSCH W7DTC, ULTRA-X. Adherents of a specific brand can safely go to multielectrode candlesBy supporting your favorite manufacturer. The effect will be seen immediately.

Refractory materials

Improved car candlesEngineers began to use precious metals such as platinum or iridium. The rationale for this is the temperatures withstanding with these materials.

Although the price of such products from $ 20 and above, but car owners establishing them in their cars reasonably argue their noticeable work on fuel economy. We can notice approximately 5-7% of gasoline savings. For carburetor models, the bottom of the interval will be closer. However, with a bonus they will have a motor and fuel system.

Iridiyey electrodes in candles

After conducting simple calculations, it can be determined that even such a high price "will command" savings with an average road after 3-4 months.

Drivers sports cars Noticed that if the central electrode has a thinner diameter than other structures, the spark is formed more powerful. But small size can quickly burn out. Therefore, iridium and platinum electrodes appeared, which are able to withstand significant overheating.

Changed and the direction of filing spark. Now the voltage comes from the side electrode, and this makes it possible to cleanse the thin central rod from the car.

Positive qualities of candles with refractory electrodes:

• long term work;
• self-cleaning from possible nagar;
• increase dynamic and environmental properties power plant;
• saving At fuel consumption.

The DENSO IRIDIUM POWER model is equipped with an electrode in the central part with a diameter of only 0.4 mm. German engineers in the Bosch Platin candlelight almost completely packed the axial contact in the ceramics. This significantly extended its service life by reducing the temperature effect on the metal part.

The Beru Ultra-x Platin model is made in the form of a multi-electrode design with axial platinum contact and four side. Engineers from NGK tried all electrodes from precious metals, as a result, the DFE model appeared, in which the central part of the iridium, and the side contacts from platinum.

Remote selection of candles

The popular way to buy spare parts via the Internet did not bypass and car spare parts. To order online, you need to visit one of the proven resources, such as denso-am.ru, make an order, pay for delivery and wait for the courier. Seller for proper selection It will be necessary to provide data on the car brake, the volume of the engine and the VIN-code of the car. This information is entered into a special service designer.

Conclusion

Picking up candles for your car, you need to be guided not only nevable price, but also durability. The second factor will help save much more. Quality candles will serve longer and during operation will create fewer problems. This will positively affect the other elements of the fuel system.

Timely and complete combustion of the working mixture in the cylinder determines the efficiency and complete return of the car engine. In a gasoline force unit, this process will provide only a good candle. In the ignition system, this item refers to the number of elements that are subject to maintenance In the form of an independent operation. Before the next replacement, the selection of spark plugs by car is carried out on a variety of criteria that will ensure the stable and reliable operation of the engine.

The main parameters and their meaning

When selecting the ignition candles, the owner of the car does not assume the presence of a large number of technical parameters and is often relying to choose a car service or seller. At the same time, clarify the main characteristics of the candle of a certain model is not difficult. Among the meaningful parameters are distinguished:

1. Number of electrodes. In most cases, copies with two electrodes are central and one side. According to the quality of formation of sparks, such samples are not inferior only at the initial stage. Candles with several side electrodes retain their properties for a long time under the condition of high-quality execution.
2. Kalil number. The indicator is taken into account taking into account the degree of forcing the power unit. Samples with a small indicator of the gawal number 11-14 are suitable for low-loaded motors. Motors with returns from 100 liters. from. From one liter work with cold (more than 20) or medium (17-19) values \u200b\u200bof a gallinal number.
3. Material of electrodes. The main material is alloyed steel with the addition of nickel and manganese. The service life increases by applying platinum electrodes. Fully platinum or iridium electrodes increase the service life of up to 100 thousand km of run, but increase the cost of the kit.
4. Geometrical dimensions represent several type indicators.

The need to accurately choose a candle in size is associated not only with the possibility of installation and a good formation of the spark. For example, a sample with a short skirt will produce a spark not in the center of the combustion chamber, which will directly affect the timeliness of ignition.

What will tell the marking

When choosing an ignition candle, the marking is able to give additional information on the characteristics of a separate instance. For example, the Bosch product with the index WR17DDC9 is decoded as follows:

• the letter "W" - the value of the metric thread on the housing corresponds to 14 × 1.25;
• the designation "R" - the presence of a resistor to suppress no interference;
• index 17 - a calil number of candles;
• serial listers "D" - the first indicates the length of the thread (19 mm), and the second indicates the presence of one side electrode;
• the value "C" indicates the use of a copper electrode as a central one.

Before you go to the store, select a suitable model based on the manufacturer's table, taking into account the parameters on the engine. Specialized resources offer a simplified search form, where the ability to make a selection by car.

We choose the manufacturer

When selecting sparking items, the choice is usually between recommended engine elements or accessible analogs. Among the most famous brands with a wide range are allocated:

1. Bosch spark plugs For, almost 90 years of history was released in terms of the number of models of more than 20 thousand, provided that the original products are purchased, the reliable operation of the engine will be provided.
2. Wide number of proposals NGK has a NGK, which has almost a 100-year history. When providing high quality, the cost for mass models of the car lies within 100 rubles per piece.
3. Candles ignition DENSO. Provide the work of the world car manufacturer champion - Toyota. The number of cars issued for 2016 exceeded 9 million pieces, which only confirms the quality of DENSO products.
4. Widespread Champion spark plugs are known for the production of parts, including two-stroke motor With a large number of revolutions.

When choosing a suitable option, not only individual specifications should be taken into account, but also take into account the interval of the recommended replacement. At small intervals, there is no need to buy a candle with a resource of 120 thousand km mileage. High-quality product, for example, Finval or Brisk will help ensure reliable sparking and optimal fuel consumption for the time before the maintenance.

Replacement frequency

The regulations for replacing the parts of the car ignition system provides for various frequency of such operations. For the most common machines, such an interval is set equal - Renault Logan (second generation), VAZ-2170 (Priora), Hyundai Solaris have an actual indicator at the level of 30 thousand km.

When planning the installation of new elements, it will correctly change the entire set of entirely, without taking into account the actual state of a separate candle. This will avoid engine starting when working in a short time.

Among other signs of violation of work in the formation of sparks, note:

• tangible increase in fuel consumption;
• the appearance of vibrations in the operation of the power unit;
• machine launch difficulty;
• dips when working in certain modes.

Online services for the selection

1. DENSO candles, you can pick up on that website.
2. Bosch candles are looking for on this resource.
3. Candles ngk can find here.

The operation of a modern car is designed for mainly service maintenance. Therefore, the manufacturer does not always provide the source characteristics that will help choose an analogue of a candle for a car. Even if Bosch will present such parameters, they will be difficult to use it difficult.

In such cases, it is convenient to separate the selection with regard to the modification of the car. It is usually enough to know such source data as the year of the car, the type and volume of the engine, the year of release. With difficulty in independent search, selection of spark plugs on a car brand trust the professionals.

It can be specialists of the nearest store of spare parts, a specialized online store or narrow-controlled service.

After processing the initial information, you will need to select the desired option from the number of available suggestions, taking into account the marking of the product. For example, for not the most common model - Ford Explorer 4.0 liters at the request of the spark plugs were immediately able to offer Bosch, Dance and VAG.

At the factory number of the car

The search for spare parts on the wines of the code is carried out in the case when the complete authentication of the car is required. This is relevant for rare modifications even known brands, relatively fresh models.

The principle of VIN search is similar to the work of search engines in the World Wide Web. Encrypted information in individual code is closely intertwined with similar spare parts ciphers. Therefore, even not knowing technical parameters, it becomes easy to recognize the desired candle.

For the task of the wines of the Win code, some options are available:

• specialized Services search for spare parts with a task of a unique number;
• search Resources integrated service online stores;
• when contacting the service center by directory or search engines.

Before purchasing any set of candles, do not forget to check their state visually.

Regardless of the volume of the engine consists in the transmission of high-voltage charge, which is necessary to ignite the fuel and air mixture in the cylinders. If the SZ for some reason fails, this will lead to unstable operation of the motor as a whole, so each car owner should know how to change the devices and which is better to choose. How is the selection of spark plugs in the car and which types of SZ can be found on sale - read it below.

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Parameters of automotive candles

Before choosing a SZ for your car, we recommend you to familiarize yourself with the main parameters of the devices. To begin with, consider their views.

Table interchangeability of the main types of SZ

Detailed manifold

1. Standard SZ. In this case, the central electrode is made of metal, which should be heat-resistant. The service life of such parts is usually not particularly high, if compared with other species. However, this type of SZ is considered one of the most common and sought-after.
2. Multielectrode SZ. In such devices, the design is supplemented with side electrodes, their quantity can be different, ranging from two and higher. The increased number of electrodes was reflected on the service life of the details as a whole. In contrast to the standard SZ, in such details the spark makes it possible to change its direction, as a result of which the electrodes are combined to a lesser extent.
3. SZ with V-shaped cut on the central electrode. Let even the form of the electrode changed, but this does not affect the service life of the device as a whole. However, this contributes to a better combustion of a combustible mixture, which in turn affects the consumption of fuel and decrease in exhaust gases.
4. Platinum SZ. Many motorists today stop their choice on platinum details, since they are electrode, although they have a smaller thickness, is able to provide better spark power. And this, in turn, provides the highest power of the motor as a whole. According to many manufacturers, the service life of platinum parts can be increased to 100 thousand km. Thanks to the small thickness of the electrode, the device provides low sparking voltage, fuel savings, as well as a stable gap throughout the life.
5. Iridia parts, In such devices from iridium, a tip is made. To date, this type of SZ is considered one of the most expensive and reliable, since Iridium is considered one of the hardest metals. It optimally opposes the formation of corrosion and various electrical discharges. The electrode thickness in this case is about 0.6 mm.
6. Forkarmed SZ not so long ago appeared. In such candles, the electrodes have an interesting design made in the form of a forkamer. When the high-voltage discharge is applied to the device in the gap, a breakdown is formed, which contributes to the deposition of a plasma cloth under pressure.

Photo Gallery "Types of SZ"

Caliv number of spark plugs

Buying details, initially pay attention to such a parameter as a calic number. This value is the designation of the time segment, after which the part will be able to give a voic ignition. Moreover, if the length of the thermal cone of the insulator element is less, this will ensure the most effective heat removal from the SZ. If you do not know which it is better to choose a NW, then first of all you should familiarize yourself with the service book to the car, where all the basic parameters of the selection should be indicated.

It is always necessary to remember that the use of components with a threaded 11 mm is not allowed in engines that are designed to operate with extended threads and vice versa. A part of the part that is installed in the motor cylinder is a source of gawal voltage, respectively, it may cause damage to the electrodes. Alternatively, under the extended device, you can install a rubberized gasket, but this option will prevent damage to the part only for some time (the author of the video is NRG61RUS channel).

Number of electrodes

As mentioned above, automotive SZ can have a different number of electrodes. The design of one-electrode details involves the presence of only one central and one side electrode. In multi-electrode devices, the number of lateral electrodes can be different. In such devices, the charge education is carried out between the main and lateral components of the structure.

One of the main advantages of the latter is that the electrode elements on the device wear out evenly. That is, if one of the components for some reason fails, it will be able to replace it with another, efficient electrode. Ultimately, these elements will change each other when you fail, while each of them breaks down (the author of the video for cleaning the SZ - channel is vailing together).

Rating SZ on brands and manufacturers

1. SZ Eyqiem 77 00 500 168. These are original devices designed for Renault K7M engines, respectively, their operating parameters and characteristics are optimally adapted to these motors. One of the main characteristics of the parts is a large departure of the electrode, which ensures the most optimal and stable ignition of the combustible mixture, even if it is unevenly distributed over the cylinder. In addition, this solution contributes to more improved ventilation of the device, which also ensures the stability of the ignition.
   In accordance with the reviews, these candles are really as good as the manufacturer describes them. In fact, the resource of the operation of the SZ depends on the state of the power unit, as well as the quality of the gasoline used. The service life of Eyqiem 77 00 500 168 is on average in the area of \u200b\u200b40 thousand km of run.
2. DENSO K20TXR. In such details, the electrodes are coated with nickel, which contributes to more sustainable SZ operation, an increase in their service life, as well as immunity to erosion. If you look at these SZ through a magnifying glass, you will see that the side elements are installed as soon as possible, not even visible traces of soldering and distortion. Accordingly, it contributes to the improved formation of the spark and, accordingly, more stable operation of the motor, which in turn affects the consumption of fuel. The only disadvantage is the high cost of devices.
3. BERU Z193. SZ of this brand is characterized by affordable cost and sufficiently high service life. There are many different types of SZ BERU in the market, but this option is considered one of the most optimal for many modern motors. Due to the fact that the design of the parts itself is one-electrode, their service life will be lower compared to the devices described above.
   Devices have a small spark gap, constituting only 0.9 mm. And although this largely facilitates the launch of the power unit, if it is north, but it also helps to reduce the power of the spark. If, in addition to all, you will refill low-quality fuel, the use of BERU can cause ignition passages, in particular, during the operation of the DVS under heavy loads. In addition, due to the fact that the electrode is a bit recessed, it contributes to the deterioration of the spark gap ventilation, respectively, this may affect the ignition of the combustible mixture.
4. Bosch. Bosch brand has long established itself on the market as a manufacturer of high-quality parts and components. As the results showed the results of numerous tests, the products of this manufacturer in quality of performance are not inferior to even market leaders. At the candlelight, the electrodes are soldered quite smoothly, while the marking on the design is applied smoothly and without distortion. The presence of the latter may indicate that you have counterfeit SZ in your hands.
   Of the main advantages of such devices, high service life should be highlighted, as well as a fairly low price. As for the shortcomings, this is a huge amount of fakes in the domestic market.
5. NGK. Iridium devices, of course, are the highest quality and efficient, and their service life will always be higher, compared with traditional SZ. Their operation, according to many specialists, is relevant on newer power units that do not "eat" oil. If you only use high-quality fuel to refuel the car, the service life of NGK can be 50 thousand km of run.
   From the main advantages of devices, a stable formation of sparks should be allocated, as well as a fairly high service life. As for the shortcomings, this is a high price, but as you know, you always need to pay for quality.

Remember: candles need to be put as the manufacturer of the car recommends!

The engine of a modern car is a complex unit in which there are different components and nodes. Its good work depends on many factors, while the spark plugs play here not the last role. That is why it is important to know what parameters should be guided and what to take into account to correctly pick up this item for the car and eliminate errors.

The main characteristics of the spark plugs

The modern spare parts market does not have a lack of ignition candles. Lots of sentences, they differ in price, manufacturer and basic characteristics.

It is easiest to buy the same models that put the manufacturer, but they can not always be available from the seller. Then the problem appears - how to choose an analogue.

Did you know? The patent for the spark plug was obtained on January 7, 1902 by Bosch. Since then, the principle of its action and the main design did not change, only performance improved.

Spark plugs supply many manufacturers. The most famous are:

• Germany: Bosch, Beru;
• USA: Champion, AUTOLITE, ACDELCO;
• Japan: NGK, DENSO, HKT;
• Korea: Besfits;
• Italy: Magneti Marelli;
• United Kingdom: Goodwill;
• Czech Republic: Brisk;
• Switzerland: FINWHALE;
• France: Valeo, Eyquem.

To properly choose the candles, you need to be guided by such basic criteria:

• overall and connecting dimensions or type of housing;
• the parameter of the gallinal number;
• spark gap;
• thermal characteristics;
• number of electrodes;
• material execution.

• length;
• diameter;
• mounting step for mounting with the engine;
• a wrench size, with which the installation is made.

Common key sizes - 16 mm and 21 mm. Standard thread diameter - 14 mm, but there are models with a value of this parameter 10-12 mm. By the length of the thread, the candles are divided into short (12 mm), medium (19-20 mm) and long (25 mm).

Important! Carefully select the ignition candle in size. Too short will not enter the jack of the engine and will be far from the combustion chamber, and too long will speak out of it, it will fall under the piston blow and disabling the motor.

This is one of key characteristicswhich indicates the thermal properties of the spark plug (on its temperature mode). The parameter is expressed in a numerical value, and the higher this number, the better the performance indicators for high-temperature working conditions. +400 ... + 850 ° C is the optimal range of operating temperatures.

If the indicator is below, then self-cleaning and the soot will not be actively enjoyed, and if the limit exceeds, it will take a valet ignition - ignition from a split surface that is fraught with the detonation of the engine, extinguishing the pistons and valves.
The value of the gallinal number of candles is classified as:

• hot - 11-14, used for low compression engines designed for low-octane fuels and a quiet ride;
• middle - 17-19, suitable for the overwhelming number of modern cars;
• cold- 20 and higher, designed for high-compression engines that use high-octane fuel, i.e. for tunned, premium class and racing cars.

• for carburetor - 0.7-0.85 mm;
• for injectors - 1.0-1.13 mm.

Important! If the spark gap is more necessary, the ignition pass and an increase in fuel consumption are detected in the car. In case of insufficient spark gap, the fuel is worse and the likelihood of the candle is increasing.

Candle electrodes also affect their classification and motorist selection. They are calibrated by such groups:

• single-electrode with a single central electrode;
• multielectrode, where, besides the central, present in the design several side (3-4 pieces), such products have a greater resource.

Did you know? The most expensive electrodes are put in candles for racing cars, the composition of their alloys includes palladium and gold.

Other features when selecting spark plugs

The complexity of the selection of spark plugs for a specific car brand is due to the lack of a single marking on this spare part. Each manufacturer labels the item as it seems necessary. Moreover, even within the same country there is no identical alphanumeric designation.
However, the basic conditions of marking are observed all:

• mounting dimensions (diameter and length of the threaded part);
• value of a gallinal number;
• the presence of a built-in resistor;
• the position of the thermal cone.

By brand car

Selection of spark plugs, like the rest of the car parts, should be started with technical characteristics on cars. They can be found in the technical documentation of the car, where the manufacturer always indicates the components and provides options for their replacement. On the other hand, brands that produce candles also design them not for a single series, but try to perform a model unified for different brands of machines.
In addition, new proposals appear on the market, but they will not be in the list of recommended in your technical manual. If for some reason you do not suit those candles that are set now, or they have already worked out their resource and you need to replace them, you can familiarize yourself with the available range, if you realize the search on the car brand. For this, you will need additional information:

• the model of car;
• type and volume of the engine;
• year of issue;
• modification (if any).

Search can be carried out:

• according to the catalogs of automakers;
• on catalogs of candle manufacturers;
• online in specialized resources;
• online on the sites of large online stores.

At the factory number of the car

The search for spare parts at the factory number is necessary only when the complete identification of the characteristics of the car is needed. Such a need may occur if the modification of the machine is very rare and the manufacturer has released its limited parties. For relatively new models, this option is also possible, especially if the car is not bought in the auto show. So, new owner It can reliably make sure that under the hood it has candles that correspond to the declared characteristics of a particular car model.
Selection software applied to all autobrades. VIN search methodology is quite similar to requests for the search engine on the Internet. In the individual car code, technical data are encrypted, which are closely intertwined with spare parts specifications. If the auto owner does not know or not confident in the technical parameters of the machine, the required candle can be found with exceptional accuracy.

Search by wine code can be carried out in several ways:

• in specialized services for the search for spare parts (the factory number of the machine is set);
• on search online resources in online stores;
• according to the catalog or search in specialized service centers.

An unprotected approach to the acquisition of spark plugs can lead to a serious vehicle breakdown.
Here are some selection rules that will protect you from errors:

1. The technical characteristics of your car are the main selection criterion. According to the car, the VIN-code, the type and volume of the engine determine those products that will be relevant.
2. Do not seek to buy expensive platinum or iridium candles if you are a budget car driver with carburetor Engine Or make only trips around the city for short distances. These models are promising on other types of cars, so you will not reveal our advantages. Choose something secondary price / quality.
3. Follow the manufacturer's recommendations on the spark plug interval. If you need to replace every 40 thousand km, then buy a model with a run resource of 100 thousand km does not make sense.
4. Always replace all the set at the same time, otherwise you will ensure the engine starting after a short period of time.
5. Products of well-known brands should be preferable to the goods of unfamiliar manufacturers.
6. Make sure your car model is mentioned on the product packaging.
7. Beware of fakes. Before purchasing new candles, inspect the packaging for integrity, do not hesitate to open it with the seller and check the clear print mark of the manufacturer, the quality of the thread, the alignment of the electrodes, the integrity and the homogeneity of the ceramic insulator coating (2 halves - fake). The case must be matte.
8. Use the instrument to check if it is in the outlet. The test is not work in real conditions, but a frank marriage will reveal.

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