When to change diesel oil. Engine oil change intervals. Diesel engine oil change intervals. What to do to reduce the frequency of oil changes

Engine oil must be changed regularly - every driver knows this. After all, changing the oil will help keep the engine working longer, the repair of which is one of the most expensive services in a car service. To avoid unnecessary costs in the future, it is necessary to take care not only of the quality of fuel in fuel tank, but also about good engine oil for the power unit. Change oil in fuel system diesel car it is recommended every 5000 - 15000 km of run or once a year if the run is not large. You can find out more about how often the lubricant needs to be changed in a particular car in the vehicle operating instructions. The brand of diesel oil recommended by this manufacturer will also be indicated there. Better to stick to these guidelines.

On sale there is different types engine oils. They are divided into synthetic and mineral, summer and winter. Mineral oils are inferior in their characteristics to synthetic ones and are used mainly in domestic cars... Synthetic and semi-synthetic lubricants are more reliable and comfortable for an engine that runs smoothly with such protection. Semi-synthetic oils universal, they can be poured into both gasoline and diesel engines. Summer oils will not allow you to start the engine in frost, and winter oils can lead to extreme heat, so it is better to choose all-season lubricants that do not lose their properties at any ambient temperature. The engine oil change interval depends on the type of power unit, mileage and quality of fuels and lubricants.

Self replacement oil in the engine requires a certain observation from the driver, because oil that is not topped up on time can lead to serious damage to the power unit, and its repair is not cheap, especially for diesel cars... You can check the lubricant level using a special dipstick, which is located next to the inspection neck. The engine must be cooled down and the machine must be parked on a level surface. The probe is taken out of its socket, wiped and lowered again into the hole. The oil level is determined from the oil spot and the corresponding marks on the dipstick. The distance between the maximum and minimum level corresponds to one liter of grease. Insufficiently lubricated moving parts of the machine will wear out quickly due to the resulting friction during engine operation.

Before the direct replacement of diesel oil begins, it is necessary to drain the remaining mixture and flush the system. To do this, the car is driven into a pit. Turn off the engine and open the hood of the car. Diesel should be warmed up to 70-80 degrees. Then there are two ways to get rid of the remnants of the used mixture: use a five-pack fluid, flushing fluids or regular oil of the same brand. Concentrated additives "five-menutka" are poured directly into the used lubricant and start the engine at idle for 5 minutes, then drained. Poor-quality cleaning fluids can damage motor parts, corrosive components corrode the surface of the parts.

On sale big choice flushing compositions that are poured into an empty system after the waste material has already been drained. But this agent does not come out of the engine completely. Up to 20% of the wash is deposited in the engine, which is mixed with fresh engine oil and deteriorates its properties. In particular, the balance of oil additives is disturbed, which guarantee additional opportunities when using a certain brand of lubricant. The third way to flush the engine is to use standard oil, which is then drained. After cleaning the engine, unscrew the old one that has worked out its life, oil filter and install a new one. The filter has a copper gasket under the plug that comes with it. She's changing too. The rubber elements are lubricated. This is done before installing the filter in its place.

Oil change in diesel engine not a complicated process. You can do this yourself without outside help. To do this, you need to drain the used oil through the drain hole of the crankcase by unscrewing the plug in it. The oil filler plug is preliminarily removed. There you need to fill in a gentle flushing agent that does not damage engine parts in the amount of 3-3.5 liters. The engine is started and left to run for 5 minutes. Then the flushing liquid is drained into a prepared container as well as the remaining grease. Close the crankcase plug. Next, the filter changes. If it is covered by the crankcase guard, it must be removed. Fresh engine oil is filled into the prepared system through the filler hole. Its level is checked with a dipstick, and the required amount is found in the instructions for the car.

Many car owners have a misconception about diesel oil change intervals... Let's try to figure out logically how to derive the optimal interval, and also debunk some of the myths about oil changes.

Although some vehicle manufacturers recommend long enough oil change intervals, this may not always apply to the specific operating conditions of the vehicle. First of all, this is due to the rather difficult operating conditions of most cars. For example, in the conditions Russian Federation presented broadest range of road surface options, from dirt roads to the autobahns... In the first case, the car units are under increased load. off-road, in the second - high speeds.

The factors of increased load include a wide variety of climatic zones in our countries, which means periodic operation at severe frosts and in hot conditions... Add to this many hours of traffic jams in metropolitan areas, and it will become obvious that the operating conditions real car far from "laboratory". In this case, a more frequent diesel oil change will avoid many problems. Changing the oil and oil filter regularly will help to maximize the life of your engine.

What is the function of engine oil?

Most people believe that engine oil is only made to lubricate engine parts. This is how it was several decades ago. Modern engine oil is much more than just a lubricant, it is absolutely necessary to keep the engine and other components of the car in working order.

So, modern engine oil in a car:

• protects all engine parts from corrosion;
• cools the engine and its parts;
• removes wear and carbon deposits from the engine, leaving them on the filter screen.

But all these functions can only be performed fresh oil, since over time the oil "wears out" and loses a significant part of its effectiveness for a number of reasons.

Reasons for the deterioration of oil properties

The main reasons for the deterioration of oil properties include:

• excessive overheating
• decrease in viscosity
• pollution
• depletion of additive package

Let's analyze each of the reasons in more detail.

Excessive overheating.

While the combustion temperature of your oil can hover around the 100-110 degrees mark, it will reach much higher temperatures inside the engine. This can lead to burning out, coking (ashing) as well as other problems, including loss of oil pressure due to too low viscosity in extreme situations. This build-up of burnt oil over time can clog the oil passages and cause serious damage. It is worth noting that synthetic oil is less susceptible to heat stress as it has been designed to operate at higher temperatures.

Reduced viscosity.

Modern car oils have a wide range of viscosities that vary with oil temperature. This is a very important property, since during cold start it is necessary that the oil is not too viscous, and when high temperatures it is important to maintain some viscosity to maintain pressure on the bearing surfaces. That is why on the packaging we see various markings of oils, for example 10W30 or 10W20, reflecting the viscosity characteristics of the oil. Manufacturers increase the viscosity index of oils using various additives. However, over time, additives degrade as a result of inevitable chemical reactions during operation. As a result, the oil loses its viscosity, which in turn negatively affects oil pressure, flow and other properties.

Synthetic oils are more stable in this respect and show less qualitative shift over time.

Contamination.

The oil actively cleans internal components engine. Part of the additive package, especially in diesel oils, is an detergent... The oil tends to trap contaminants (for example, ash formations), and "take" them away from the engine units into the oil filter, or dilute liquid and gas elements that impair the performance of the system (for example, carbon, water, glycol).

Oil temperatures are almost always adjusted above 100 degrees Celsius to vaporize any water vapor, but excessive idling in a cool place can quickly attract moisture. Water is a particularly hazardous inclusion because it dilutes oil and ionizes acids, which are corrosive. Fuel can also dilute the oil, which in turn lowers its viscosity index. The only correct solution in case of significant contamination is to replace the oil in the diesel with a fresh one.

Depletion of additive package

To ensure the best oil quality, each oil company forms its own additive package. These may include zinc dialkyldithiophosphate (ZDDP), molybdenum disulfide, refractive index viscosity modifiers, seals conditioners, anti-foams, and other additives. Over time, these additives interact with both pollutants and directly with parts of the car's engine, with the result that their effectiveness is significantly reduced.

Some myths about diesel oil change.

"It is necessary to change the oil every 5000 km."

This is one of the recommendations that can be attributed to the "extremes". In fact, there is no reason to change the oil every 5000 km on the vast majority of motor vehicles. But there will be no harm from this either. The only "harm" frequent replacement oil in diesel - unnecessary waste of money and time... This will not damage the engine in the slightest degree, so if you need to change the oil in a diesel every 4-5-6 thousand kilometers for peace of mind, then you can safely continue doing it.

"It is necessary to change the oil every 25,000 km."

This is another, but much more dangerous, extreme. Extending the oil change interval is easy not worth the "savings", the consequences can be much more expensive. The exception is some special vehicles which are designed to operate over long periods of time, in addition, some oil manufacturers produce products with an extended service life.

In the case of special equipment, the oil filter has an oversized size, which makes it possible to process and retain a large amount of pollutants. But using extended life oil on a regular car for a long time, in order to maintain the effect, it is necessary to regularly replace oil filter, in this case the filter change will be done more often than the oil change. "Synthetic oils only for new cars, mine is too old."

The synthetic oil will work in any engine... It has better properties than conventional oils, so the engine will thank you anyway.

Undoubtedly, The best way determine the optimal interval and brand when changing the oil - this is your vehicle manual. It reflects the diesel oil change interval, type and minimum acceptable oil quality.

conclusions

There is no doubt that synthetic oil will protect your diesel engine like no other. But for many urban residents of central Russia who use a car in enough quiet mode, semi-synthetic or mineral oil... If you like high speeds or use a car often for the transport of heavy loads, it is in your best interest to change the oil more often and use synthetic oils because this use significantly accelerates the aging of the oil. In addition, given the sharp temperature changes from winter to summer, it is advisable to consider using oils of different viscosities at certain times of the year, for example, more high viscosity in summer months and less viscous for cold starts in winter.

Regular diesel oil change is one of the most important aspects of long-term operation of your car! If you have any doubts about the frequency or type of oil for your diesel vehicle, our specialists are always ready to advise and help in choosing the best suitable product.

Changing the oil in the robot or variator will avoid premature wear transmission, extend its service life, improve driving comfort and avoid accidents. The main thing is to entrust the work to professionals - STO SPOT. See for yourself - call by phone

We continue to understand the issue of diesel engine maintenance. We wrote about how the diesel lubrication system works, and this material was devoted to the issue of choosing an oil.

Today we'll talk about oil change regulations and some common mistakes.

How often do you need to change the oil in a diesel engine?

Domestic "diesel fuel" contains more sulfur and other harmful impurities, which quickly "age" the oil. Therefore, the services have completely different recommended lubricant change procedures: every 10 thousand km for gasoline and every 7-8 thousand km for diesel engines... This is when used in normal, not harsh conditions.

If you drive with a loaded trailer or for short distances and often get stuck in traffic jams, the interval is shrinking up to 5 thousand km. mileage.

By the way, long ICE operation on Idling also applies to difficult conditions operation, so if your car has been running for a long time with the engine running, feel free to add 1-3 “conventional” thousand to every 10 thousand kilometers. That is, in this case, it is not so much the kilometers traveled that are counted as the so-called "motor hours".

These figures are not a "scam" of car owners for frequent visits to service stations.

Aged oil accumulates dust, dirt and metal shavings, and the additives in the oil decompose. As a result, the oil is there, it works and outwardly it may still look quite usable - but it does not cope with its functions.

The washing ability drops, and in critical cases, the oil channels are clogged with viscous (thickened) oil - and hello, oil starvation of the internal combustion engine and overhaul.

How much oil do you need to fill in a diesel engine?

Oil volume in the engine lubrication system different for all motors... It is determined by the parameters of the engine, its design features, the degree of forcing, etc.

Moreover, the amount of oil that needs to be poured into the engine may differ even on cars of the same volume, not just different ones - of the same make and model.

Therefore, the first thing you should study is the instruction manual for your specific car model. Look for information from the manufacturer, do not rely on forum discussions and the like.

At the same time, be sure to look at the requirements of the manufacturer of your diesel engine for engine oil: what class of oil is recommended, what degree of viscosity. An unsuitable oil will cause the engine to malfunction and reduce its life.

It is important to take into account that if the manufacturer indicates the recommended volume of oil as 4 l - this does not mean that with each filling of grease you will need to top up these 4 liters.

The thing is that it is impossible to completely drain the used oil: some of it still remains in hard-to-reach areas and on the surface of internal combustion engine parts - on average, this is a volume of 500 grams. It is possible to completely remove the remnants of old oil only if the engine is disassembled, cleaned and washed.

So it turns out that when the user specified in the manual is 4 liters engine oil in no case should you fill in all 4 - you will get an overflow.

You need to add oil gradually, controlling its level with a dipstick. Offhand, subtract 500 ml from the manufacturer's recommended amount.

There is enough oil when its level is exactly in the middle between the marks"Min" and "max" on the probe.

What happens if you pour oil into a diesel engine?

In general, if the car owners, who specifically add engine oil slightly above the norm or up to the maximum mark on the dipstick, arguing this with the high consumption of engine lubrication "for waste". This is not worth doing.

The fact is that as a result of oil overflow diesel will consume more fuel- after all, excess lubricant provides additional resistance to the pistons when they move in the cylinders. The crankshaft also becomes more difficult to turn and transfers less torque to the wheels. The car accelerates worse, reacts poorly to pressing the gas pedal - and here it is, increased fuel consumption.

In addition, working in the mode high temperature, the oil expands in volume, the pressure in the engine lubrication system increases - and the pressure on the oil seals and other sealing elements.

With time, oil starts to flow through them literally pushing out the oil seals contaminates engine compartment flowing through the dipstick. As a result, it runs the risk of getting into the cooling system, and it just pours out.

Oil overflow quickly "finishes" the oil pump, enhances the formation of carbon deposits in the cylinders. Excess oil gets into exhaust system, the exhaust becomes noticeably black and "heavier" due to toxic compounds, and the catalyst becomes clogged.

Therefore, having found excess oil, you need to unscrew a little drain plug on the oil pan (the car is hung in a pit or raised on an overpass) and drain the surplus.

You can use an oil pump or a conventional syringe and a dropper tube to pump oil directly from the oil filler neck.

And you can contact the service station so that the specialists pump out the excess lubricant with a vacuum.

You will find fuel pumps, injection pumps for a diesel engine in the catalog

The engine is the heart of the car, thanks to its work, movement is possible and without high-quality timely maintenance, it can break down. Since the repair of the main power unit is the most expensive, it is much easier to monitor its operation and replace the working fluids in time. For example, an important element in the operation of an engine is oil, which plays the role of lubricating engine parts: pistons, gears, and so on. Unlike gasoline engine, the diesel unit is more demanding on the lubricant. At the same time, numerous factors affect the intervals of its change.

Change frequency lubricant depends on many factors, but usually its value is indicated in the vehicle's operating instructions. Different models require different quality oil, so the change of lubricant usually differs depending on the brand of machine, the type of oil used and what the operating conditions are.

TIP: The engine oil should be changed every 8-12 thousand kilometers, or once a year, at least, so you will extend the life of the engine and all its parts.

Often mineral oil liquid in the engine becomes unusable after 5,000 kilometers, but the synthetic analogue can withstand 15,000 kilometers.

But, of course, several factors also affect the life of the grease:

1. The age of the car - over time, abrasive particles begin to emit in the engine due to the ability to erode the metal parts of the power unit;
2. The intensity of car use - the more often you start the car, the faster the lubricant inside the engine becomes unusable;
3. Mode of movement - depending on the driving style, the lubricant begins to act in different ways, for example, when the engine overheats, the oil foams and ceases to perform its functions until the engine cools down;
4. The quality of the fuel used directly affects the operation of the engine, and hence the service life of the lubricating fluids;
5. Dirt and Dust Inside Parts - Dirt trapped inside the engine makes the oil fluid unusable.

Since the frequency of oil changes directly depends on the quality of the fuel, the manner of movement, the quality of the road surface, you should think about how to save money on a more rare oil change. If you use high-quality diesel fuel, drive carefully, you will certainly be able to extend the life of the oil lubricating fluid inside the motor.

In any case, if the engine of your car is subject to various kinds of loads and it is influenced by one of the factors from the list above, then you need to change the lubricant more often. In this case, on average, it is necessary to change the oil 2-3 times a year, and the mileage interval will decrease to 4,000 kilometers with a mineral composition and up to 10,000 kilometers when using synthetics.

What oil to use in a diesel engine

When changing the lubricant yourself, you should select special oil specifically for the diesel engine. It is forbidden to use oil fluid for gasoline engines in engines powered by diesel fuel. In addition, it is important to purchase an original proprietary blend, as counterfeiting can lead to malfunctioning unit.

If you don't know which oil will do exactly for your car, read carefully the instructions for its operation, there is all the necessary information. If you are in doubt about your choice, then it is better to consult with a specialist in an auto store when buying an oil fluid.

You should also purchase an oil filter and all necessary tool: a screwdriver, a key for a cork, a container for draining the working off. If you don't have a pit in your garage, then you will also need a jack to make changing the oil in your diesel engine easier and hassle-free.

DIY engine oil change

It is best to change the oil fluid in a car service specialists, but in fact this process is quite simple and any motorist can do it. It is very important to change the oil on time, as this affects the operation of the machine's power unit.

Since the viscosity of the lubricant directly depends on its temperature, the first step is to warm up the oil liquid. To do this, the engine starts, let it run for a few minutes so that the lubricant is heated to a sufficient temperature. This will allow it to be drained faster and there will be no likelihood that part of the mining will remain inside the unit.

The diesel engine has a special drain hole through which the used lubricant should be drained. As a rule, it is located under the bottom of the car and is closed with a special stopper. For more convenient drainage of mining, it is better to drive the car into the garage above the pit, or raise it on a jack. You should also prepare a container for used grease. By placing a bucket or basin under the hole, you can unscrew the plug, but note that the heated oil will tend to spill out, so you should be careful.

After all the mining has poured out, the plug is installed back in its place and the engine oil filter is replaced, which must be purchased in advance. When changing it, you need to clean all the fastening parts in order to avoid its rapid clogging. After installing a new filter, we check the quality of fastening of all parts and start filling with new oil.

TIP: During the operation of a diesel car, experts recommend using oil grease from the same brand throughout its life.

New oil fluid is poured into a special hole on the outside of the engine. In this case, it is important to ensure that its level does not exceed the mark on the dipstick. After the end of the lubricant change, you can check all the fasteners and connections, and then start operating the car.

Video: do it yourself oil change in a diesel engine

Diesel power units differ in certain features, compared with gasoline engines... In this regard, changing the oil in a diesel engine has certain subtleties. Special requirements are imposed on the quality of the lubricating fluid poured into diesel-powered units. The change intervals are largely influenced by the operating conditions and the quality of the fuel used.

Diesel engine oils

A special lubricating fluid is required to change the oil in a diesel engine. It must have a class of at least B2 according to ACEA classification or CD by API. The viscosity parameter must be selected taking into account the tolerances set by the automaker.

Most often, for diesel power units, universal semi-synthetic and synthetic lubricants are used, the viscosity index of which is 5W40 or 10W40. Additionally, it is recommended to take into account the type of product (synthetics, semi-synthetics, mineral water). It is also important to respect the engine oil change interval.

In gasoline engines, you can find out from a separate article on the site, and today we will consider everything about changing the oil in diesel engines.

Why is the oil changed more often in diesel engines?

Motor resource diesel unit depends on the quality and suitability of the oil used in accordance with all the recommendations in the owner's manual from the car manufacturer. For European cars, an oil change in diesel engines is recommended approximately every 10 thousand kilometers, while in gasoline units the oil can be changed every 15-17 thousand kilometers. Note that this is only true for good operating conditions in European countries.

It is important to note that gasoline and diesel fuel in Europe are of higher quality than in Russia and the CIS countries as a whole. Domestic diesel fuel contains more sulfur and other harmful impurities. As a result, engine oil ages and oxidizes faster. In dealerships in our country, according to the regulations, they usually change the oil in gasoline engines after 10, and in diesel engines after 7.5 thousand kilometers. When using the machine in harsh conditions and traveling short distances, the interval will need to be shortened. In such cases, on diesel engines, the oil is changed every 5 thousand kilometers.

Some motorists mistakenly believe that modern turbocharged diesel engines running on synthetic and semi-synthetic fluids require less frequent replacement than older units, which were filled with mineral water.

Synthetics as semisynthetics are distinguished by their ability to better preserve their original properties and specifications... Such oils better clean the internals of the engine from wear products, better protecting it from wear during the entire service life. Thus, expensive synthetics have higher performance characteristics, but even it needs to be changed regularly.

With regard to lubricants with the Longlife mark, which are designed for higher mileage, as well as universal oils, things are not so simple with them. Initially, they are designed for diesel engines running on good diesel fuel that meets the standards of European countries. In the CIS, such diesel fuel is rare, therefore, the mentioned oils do not work as expected by the manufacturer.

What happens if you do not change the oil in a diesel engine for a long time?

The quality of diesel fuel and operating conditions significantly affect the life of the engine oil. Without timely replacement the fluid will deteriorate and negatively affect the insides of the motor. Old oil contains dirt and dust particles that work like an abrasive.

The additives gradually present in the lubricating fluid deteriorate and disintegrate, so the fluid no longer adequately protects the engine from wear, lubricating the rubbing surfaces. Additionally, the detergent properties of engine oil are reduced and soot begins to deposit in the diesel engine, as well as all kinds of harmful deposits.

In critical situations, it is possible to completely clog the oil channels of the lubrication system with dirty oil, which is heavily thickened. This leads to the need for costly and complex overhaul... In the case of diesel engines, such repairs are very expensive!

Diesel engine oil change - essential procedure, allowing you to extend the life of the power unit. We strongly recommend that car owners use only those oils that meet all tolerances. Ideally, you need to fill original oil recommended by the car manufacturer. With every oil change, it is important to change the filter in the diesel engine.

If you notice that the oil quickly darkened or even turned black almost immediately after changing, this does not mean that the quality of the lubricant is poor. On the contrary, when the oil darkens, it works. It contains detergent and dispersant additives that are beneficial to the powertrain.

Continuous operation of the machine on oil of a certain type from a particular brand eliminates the risk of interaction between the remnants of the old fluid and the fresh one. This will eliminate the appearance of insoluble and hazardous deposits. Therefore, you will not need to flush the power unit when changing the lubricant.

Oil change procedure in diesel engines

There are no fundamental differences between oil changes in a diesel engine compared to gasoline engines. The algorithm is about the same, but it is recommended to change the oil in a diesel engine on a heated engine so that the liquid is more liquid and flows out in full.

Drive the car on inspection pit, overpass or lift with a lift. It is important that the body is horizontal to the ground. Open the hood, unscrew the filler cap and pull out the dipstick. Place a suitable container under the crankcase where you can drain old liquid(it is important that all of it fits, otherwise you will stain the floor).

We unscrew the drain plug, which is a regular bolt. Do this carefully, or you may burn yourself. On average, 4-5 liters of lubricant flows out of the engine in 5-7 minutes. After that, you need to unscrew the oil filter using a special wrench or screwdriver. In the second case, you need to pierce the filter housing and use a screwdriver as a lever. Many experienced motorists recommend new filter fill with oil before tightening, but this is not relevant for new cars. The main thing is to lubricate the threads and the sealing gum, after which you can screw the new filter into place.

Screw in the drain plug, and it is advisable to replace the gasket (it looks like a copper washer). Tighten the bolt carefully so as not to rip the threads, and it is generally better to tighten the filter by hand - such efforts will be enough.

Pour fresh purchased oil into the filler neck through a funnel so as not to spill anything. Fill in about 20% less oil than stated in the instruction manual. This is due to the fact that not all of the liquid is drained during replacement. Check the level with a dipstick so that the liquid is between the min and max marks. Screw on the filler cap, insert the dipstick and start the engine until the oil pressure light on dashboard... Stop the engine and check the oil level in the system with the dipstick again. Top up if needed, but it's important not to overdo it. If the fluid is greater than the maximum, the gaskets and seals may be damaged.

As you can see, changing the oil in a diesel engine is not difficult, so there is no need to spend money on a visit to a service center. Everything can be done with your own hands, saving a little money.