Best car for cars with mileage. How to choose engine oil. More - does not mean better

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How to choose engine oil with big mileage? A similar question has long been worried about drivers. Not all are ready to replace the power unit when first problems occur.

Usually, Russian motorists prefer to increase the operational period of old engines by using oil liquids with many different additives. In view of this knowledge, what lubricant should be pouring into the engine with a large run, it will not be perfectly superfluous.

Lubrication tasks, motor wear

The power unit of the car is needed high-quality oil. The indicators of the operation of the car (for example, the cost of fuel, the number of overhauls passed between overhauls passed from the kilometer). The effectiveness of reducing friction directly depends on the state of the motor, type and quality of the car filled into the engine. Consumables manufacturers produce various types of lubricants intended for certain engines. Automakers are prescribed in operational guidelines, what characteristics should be the optimal oil fluidWhat additives should contain.

It is well known that all the motors have several wear stages:

stage Stream;
standard condition;
emergency mode.

Engines with big mileage close to emergency regime. Wear is all stronger, as a result, this will lead to faults. For such power units, special additives are created that are added to lubricant. They confront wear, form a thick lubricant film that protects the spare parts and shares the contacting parts.

Cartoon sediments formed in the engine will eventually lead to a decrease in spare parts mobility. Thromb may appear, the finally paralyzing functioning of the engine. At best, combustible costs will increase, power drops. In certain cars there are additives that prevent Nagar formation. In addition, they make it possible to eliminate existing education. The additives remain on the details. Also, the use of synthetic makes it possible to significantly save fuel.

Marking Avashel

It is difficult to establish which machine will be optimally lubricating the machine machine having a large mileage or highly worn items. It is recommended to familiarize yourself with the operational guidelines, the advice of automakers, marking on oil tanks.

Temperature Mode of Motor Oils

Usually, 2 significant indicators are prescribed on the label: the thickening index, a viscous index. For example, 10W30. First goes "10". The number shows the oil thickening index. What he is less, with more cold conditions it is possible to use the lubricant normally.

The letter "W" indicates that the oil is possible to operate in the winter season.

If the engine is difficult to start in winter, it is desirable to use a consumility with a low thickening index (especially where the temperature is less than minus twenty). In places with very frosty winters, it is necessary to use oil that has a thickening index of 5 or less.

In order to classify the car, except the SAE specification, an API applies. Marking petroleum product pair of letters. The further the 2nd letter is located in the alphabet, the higher the quality of the car. For cars with a large mileage you need to use the oil that has a second letter in marking - "F".

Separation of lubricants by origin

Today, all cars by origin are divided into mineral water, synthetics and semi-synthetic. The last type of oil is very common in the Russian Federation.

Experts advise when using the motor exactly comply with the instructions for applying a certain type of lubricant. Sometimes high-quality synthetics may damage the power unit instead of ensuring reliability and durability of its work.

For example, if you replace mineral water on the synthetics, you can encounter trouble. Synthetic lubricant Not suitable for engines with high mileage. Instead of reducing the wear of the glands, she simply breaks them.

Care must be taken if you decide to choose a semi-synthetic machine for the killed engine. It is better than mineral lubrication, but at the same time more fluid. This may be bad to affect the engine with a big mileage. In view of this, if you need to pick up an oil for a worn engine, be sure to consult an employee of the official dealer center.

If you drove on your car more hundreds of thousands of kilometers, you need to pour into the MINTERVE. In particular, this is relevant for Russian cars. Remember that the engine worn out consumes a lot of lubrication. Mineral car is inexpensive, therefore is an excellent choice.

The semi-synthetic is a combination of mineral metal with synthetics. For older russian cars Its use is fraught with a damage of the engine of the engine. Is due to the fact that motor oil This type is added a lot of aggressive additives.

Requires not to forget about the features of the operation of extensive power units.

Some drivers, seeking to save on lubricant, often do not remember that technical requirements Machines for wear motors as the car uses only increase. Therefore, the price of oil is growing. In view of this, you should not be guided by the price when choosing a lubricant.
On the trip often arises the need for an immediate transshipment of the car. Therefore, always have at least one liter of a good consumor.
Remember that the synthetics represents a wonderful cleansing agent for the engine, as there are many special additives in it. In view of this, before replacing the car, you need to wash the motor with special means. Otherwise, the synthetics will wash existing deposits, as a result of this, the maslochanals will be clogged, the engine will occur.
When you decide which oil is better, and get it, do not rush to pour lubricant into the engine. You can immediately pour only when you use the same brand. In all other cases, the motor must be well wash, oil filter Replace to another.
Pour into the engine a new consumator, remember its name, the main characteristics, so that you do not wash the engine at the next replacement (if the brand coincides).
After you fill the machine, control the engine operation for some time. Of course, you need to track the oil level.

With increasing mileage car Motor Often loses its own power, malfunctions begin to arise in it. You can correct them and need. For this, a lot has been created different oils With additives. In order to improve the operation of the engine, and not finally carry it, it is necessary to clearly understand which oil is to fill in the FRO. Incorrect lubrication selection can very badly affect the state of the engine, because certain cars contain a variety of chemical additives affecting the details.

In which the newcomer may well be confused. That is why we wrote this small guide, designed to facilitate the choice and help pick up the butter, which is perfect for your car.

Supplements not only contribute to the maintenance of good lubricity, but also help minimize the precipitate and Nagar, as well as any damage from their formation.

. Viscosity Index Optimizers: Reduce the tendency of oil to the thinning of the layer with an increase in temperature.

. Cleaning components:unlike domestic type, they do not purify the surface of the engine. They remove some deposits, mainly solids. But their initial goal is to maintain the purity of surfaces, preventing the formation of high-temperature deposits, rust and corrosion.

. Dispersant:disaggregate solid particles, holding them in solution, preventing them from aggregation, formation of sediment or nagar. Some additives or additives work both as detergents and dispersants.

. Anti-wear tools: There are situations where the lubricant is led by a continuity, so anti-wear reagents must ensure the protection of metal surfaces. The zinc and phosphorus compound called ZDDP is a long-used leader along with other compounds, such as phosphorus and sulfur. You should know that ZDDP consists of zinc dialkildithophosphate.

. Friction modifiers: This is not the same as anti-wear means. They reduce engine friction and thus can improve the figure efficiency. Graphite, molybdenum and other connections are used.

. Frozen temperature depressants: Only because viscosity at 0 ° Fahrenheit is low, this does not mean that the oil will be easily flowing at negative temperatures. Oil contains wax particles that can stick and reduce slip, so these additives are used to prevent this phenomenon.

. Antioxidants: With increasing engine temperature for best control For emissions, antioxidants are used to prevent oxidation (and, consequently, thickening) oil. A number of additives that perform other functions also serve this goal, such as anti-wear means.

. Foam Inhibitors: crankshaftWhipping oil in the pallet of the crankcase, causes foaming. Oil foam is not as effective as a liquid, therefore inhibitors are used to destroy foam bubbles.

. Corrosion inhibitors: Protect metal parts from acids and moisture.

More - does not mean better

You can't add more additives. In fact, you may worsen the situation. For example, sulfur compounds have anti-wear, antioxidant characteristics, but they can increase fuel consumption and affect the operation of the catalytic neutralizer.

Necessary, a large concentration of a particular washing agent may affect the anti-wear equilibrium. A too large share of a particular chemical can affect efficiency and worsen fuel consumption. Anti-wear and friction-reducing additives may also contain ingredients (such as sulfur), which may affect the characteristics of the catalyst.

The oil industry turns out to be strong pressure, which consists in legislative restriction of the use of sulfur compounds in oil or gasoline. This is due to the toughest requirements of ecologists, the resistance of producers at the same time is justified not only by the desire to avoid expensive upgrades
production, but also the fact that the engine oil is a finely balanced product, the exception of one component from which will lead to serious consequences and objectivedifficulties.

First you need to say about the fact that most of Motor oils that are sold in stores are often "left" than gasoline. In our article "Motor oil for cars with a huge mileage" we will tell you about how to choose the engine oil, what characteristics it is obliged to have and what should always be paid to your attention when purchasing. Very often counterfeit engine oils try to disguise under the names of very recognizable brands - LUKOIL, Castrol, BP and Shell. The possibility of what you buy left oil is very high if you take it in some unknown store.

In the main thing in weaned kiosks and car markets, they often sell "Levak", and parts of the spare parts can also be simply injected into a fake. It often happens that even in large hypermarkets, parties of counterfeit engine oils are delayed. Purchase 100% real oil will only be possible on personalized shell refueling stations, LUKOIL and TNK-BP. If you still decide to buy oil in an unusual place, then it's better to buy some kind of unlocked brand, for example, Motul or Liqui Moly.because They are not so often fake. Nevertheless, my advice to you, when buying an oil, will certainly save the check itself, including the canister, in case of substitution. Maybe you need.

Well, now it's time to understand the symbols. For many people, this is the "Filkness of a gram." If you look at the engine oil label, you can see the designation - 10W40. What does it mean? This is a viscosity on the standard SAE. For example, 10 is the index of thickening. The lower the figure, the more the low temperatures will be able to withstand oil. These thickening indexes (or thickening) can be from zero to fifteen.

Now we will talk about the 2nd digit (in our example, it is 40), denotes viscosity at the highest motor temperature - about 100 degrees. And again, as with the first digit, the more the digit will be, the thickness will be the butter, there is a viscosity from 30 to sixty. Means the oil with a viscosity of sixty will be the most thick. But what denotes the mysterious beech box between 2 indexes? W W Winter's word (from English), respectively, means the time of year when this oil can be used, i.e. This is a season of use. Means in our case it is "winter" oil.

How then to find out what oil should be poured into your car with a huge mileage? Everything is not difficult at all! Open annotation and read it. In annotations to your car will certainly be written, what should be the characteristics of the engine oil. If in winter time Years, you often appear tenure with the machine, the engine is poorly launched, then we recommend that you pour oil with the smallest thumbnail index. Let's say, instead of recommended 10W40, fill 5W40. We guarantee that in summer with so oil there will be no problems. It is not recommended to fill oil with the highest viscosity if you are not a specific racer. Well, the riders should imply that the oversized viscosity leads the engine to "oil starvation". In addition to oil to get where it is necessary, it begins to accumulate the cylinder head. So, for example, the Russian racing drivers in the 1980s did the subsequent, they specifically pulled the oil canals in their own racing "Zhiguli" and poured into their "Castrol Formula RS" oil with a viscosity of sixty, i.e. Twice greater than necessary.

Another designation on the standard API is the property index. It looks like two huge Latin beaks, sf. Oil quality should be determined by 2nd beaks than it will be further alphabetically, the high quality oil will be. Vases and foreign cars of the 80s will suit SF oil, but SG will suit many new imported cars for many recent years release.

The oil with the SF index is advised for many cars in the Russian Federation. If he is interested in it, you will board the SG oil, it will be great, well, then I do not advise you to experiment. In most cases, everything is very high-quality oils are synthetic. If your car needs mineral oils, then the "synthetics" will only bring you harm. What is it fraught with? Imaging oil consumption - it will break through the worn oil. The main problem at least what synthetic oil is the protection of the motor from the "wedge", and not an increase in its wear resistance. Initially, all modern motors are durable, thanks to this they do not have time to wear. None of the motor is not protected from oil overheating. In the lubrication system, at least a motor that works on mineral oil, resinous deposits accomplice. Synthetic oils are good detergents. Deposits, washed from the details, clog oil channels and lead to the "wedge" of the motor. If you decide to change the engine oil with a mineral on synthetic, then do not forget to wash your own motor and very painstakingly, on another, completely kill the old motor. For washing the motor, you need to use a specially selected composition.

Some specialists say that the transition from mineral to the semi-synthetic oil is not hazarded - it is not. The concept of "semi-synthetic" is multi-valued. it mineral oil With additives and a mixture of mineral oil with synthetic. In addition, relations can be at least one - one stallion / one ripper.

"Not bad oil" will cause your old car with a huge mileage, more harm than the utility, taking into account even if your car crossed the five-year-old age. Russian new machines of Korean and Chinese production will also not be much utility. European car owners are better to specify the dealer. Due to the fact that the engines are usually updated infrequently, then the options are likely.

Well, the last. There are often such cases when urgently need to pour motor oil. For this option, it is better to store 1 liter of oil and bring it with you, after each next substitution. But if the spare oil does not turn out to be with you, you can pour another oil, the main thing is that this oil has such, the same characteristics, as well as at the oiled, well, or at least with a bit of heavy viscosity and properties recommended by the API benchmark.

Dividing the "life cycle" of the engine for three periods, ExxonMobil has created motor oil for each of them special composition. So the line of products Mobil 1 appeared, including lubricants for engines of any "age".

I period

Mobil 1 New Life 0W40 oil is designed specifically for cars with mileage up to 100 thousand km. Due to improved low-temperature properties, the oil is eliminated by high resistance in all rubbing surfaces, reduces the load on the engine and rechargeable batteryProvides easy launch at minus temperatures.

Having excellent protective characteristics and a maximally balanced composition, Mobil 1 New Life 0W-40 oil opposes the formation of a car and sediment, and also contributes to the preservation of the engine operation for a long time. This oil Received the approval of many automakers, incl. Mercedes-Benz, BMW, Opel, Porsche, etc.

Advantages of Mobil 1 NEW Life 0W-40 oil:

Providing the most rapid cold start
Increased fuel economy
Saving initial operational properties with extended oil replacement intervals
Minimization of deposits education
Ensuring the purity of engine parts
Compliance with the latest automakers specifications
Protection of engine parts from wear in conditions of elevated temperature and loads due to increased oil film thickness

Mobil 1 New Life 0W40 engine oil is fully developed on a synthetic basis. This energy-saving oil reduces the pumping losses due to its low viscosity, easily goes to rubbing pairs. It does not lose the ability to maintain protective properties even with high thermal loads. Mobil 1 New Life 0W-40 complies with the requirements of the API SJ / SL / SM / CF, ACEA A3 / B3 and A3 / B4, has approval VW 505.00 and 502.00, MB 229.5 and 229.3, Porsche Special Oil, BMW Long Life Oil, GM LL -A-025 and LL-B-025, recommended by Saab.

Period

In car engines with a mileage of more than 100 thousand km. It is recommended to use Mobil 1 PEAK LIFE 5W50 oil. Having a balanced package of detergent and anti-wear additives and antioxidants, it reliably protects the engine for a long period of time.

Mobil 1 PEAK LIFE 5W-50 protects engine parts from premature wear, while ensuring optimal performance.

Mobil 1 PEAK LIFE 5W-50 oil has all the advantages as the previous product. In addition, it provides:

Comprehensive engine protection
Strengthening protection with variable loads
Reducing oil consumption in car engines with mileage due to higher viscosity

Clauses between the parts of the car engine with a mileage of 100-150 thousand km. A little increased, so more viscous than New Life, Mobil 1 PEAK LIFE 5W-60 oil is ideal for its service. In addition, the flow of this oil is less. The product corresponds to API SJ / SL / SM / CF, ACEA A3 / B3 and A3 / B4, approved by VW 505.00, MB 229.3 and Porsche Special Oil.

III period

Car engines with a mileage of over 150 thousand km are more sensitive to mechanical loads increasing from accelerated wear, and require oil use with increased protective properties. Especially for such cars developed Mobil 1 Extended Life 10W-60 engine oil.

Mobil 1 Extended Life 10W-60 has low evaporation, which reduces its consumption on the avgar and reduces the need for an attachment. It contains an increased concentration of seals swelling regulators, which helps prevent oil leakage in car engines with mileage.

According to its characteristics Mobil 1 Extended Life 10W-60 similar to the above-described oils, however, differs from them:

Large concentration of anti-wear additives to protect the engine
Reducing the consumption of oil due to a specially selected concentration of additives governing the swelling of seals

Cars with large mileage require the use of more viscous oils. Mobil 1 Extended Life 10W-60 oil provides an optimal oil film thickness, protecting parts engine. High viscosity mobil oils 1 Extended Life 10W-60 does not give it to leave the scorched gaps or evaporate under the action of high temperatures. The content of additives in oil increased: anti-wear - for improved parts protection; Regulators of swelling seals - to eliminate or reduce leaks through worn oil.

As you know, in the process of operation is subject to certain wear. If you do not go into details, gradually wear out, the walls of the cylinders, there is an increase in the gaps between the conjugate details, etc.

However, most of the recommendations for the selection of oil for the engine are based on the prescriptions of the manufacturer of the manufacturer of the manufacturer of the manufacturer, and these prescriptions are more oriented on new Motor. It is quite obvious that if the power unit passed 100-150 thousand km, then during the selection of lubricating fluid it is necessary to take into account.

Read in this article

How to choose oil if the engine has a big mileage

Let's start with the fact that you can additionally take into account the WCS wear is needed on the motors that have passed on average, 100 thousand km. and more. As a rule, owners from the date of purchase new car One type of lubricant is poured, for example, synthetic or oil with recommended viscosity characteristics.

It is also not necessarily taken into account other lubricant parameters that are written in the instruction manual. The list of the most common options, as a rule, marked low-viscosity oils 0W20, 5W30 or 5W40 on.

However, after the engine will be held above the above-mentioned mark of 100 thousand km, it is worth a separately thinking about making some adjustments to the usual "oil program", taking into account the natural wear power aggregate.

So, before changing anything, it is necessary to clearly define whether certain problems or the engine arise with the motor continues to work regularly on the lubricant that is poured into it from the moment the TC is purchased.

To the problem points that should be paid to, can be attributed:

increased oil consumption (oil consumption per avgar);
and gaskets;
noise strengthen during engine operation;
in the lubrication system;

If nothing like this is detected, then when choosing engine oil, you need to be guided by all the same common rules. First of all, you should start with operational properties lubricant. Lubrication must clearly comply with the recommended classification and tolerances for a particular auto model.

It is advisable to refrain from the use of the product, which only minimally meets the permissible requirements of software. Optimally acquire the product of the latest developments. If financial capabilities are limited, then it is better to stay on modern middle class lubrication.

The main thing is that oil properties are higher than in lubricants with minimally valid requirements and specifications. In other words, it is better to purchase a suitable semi-synthetic, than to stop your choice on the cheapest mineral oil, referring to the fact that the motor is not new.

We also add that, regardless of the mileage and the state of the FMA, it is forbidden to use oils that are not suitable for tolerances, specifications, class, viscosity and a number of other parameters. As a rule, if you explore the catalogs of engine oils, they contain various models of cars from different years of release in which you can use a particular product.

At the same time, the oils themselves, who have exactly the same tolerances, as in the manual for the old car, are usually no longer. The fact is that their simplicity has proven more modern developments that have a higher class.

Taking into account the foregoing it becomes clear that more modern oils For oldest engine, it is necessary to select not for tolerances that have long changed, but if possible, use in a particular motor. Such information should be reflected in the catalogs of the manufacturer of lubricants.

In parallel, it should be taken into account that some of the new generation ravines are unsuitable for use in the economy of past developments. As a rule, we are talking about lubricant, which has a reduced high-temperature viscosity on the shift (HTHS).

In modern motors, these energy-saving lubricants are used to reduce the fuel consumption, while the structure of the power unit is specifically designed for the fact that low-viscous oil will be used in the engine.

If you pour such oil into the engine, which does not imply the use of this type of lubricant, then the likelihood of a significant increase in wear, appearance of leaks and serious breakage power plant. In other words, the oils of this group are simply not suitable for many internal two-generations.

Motor oil viscosity with mileage

So, choose the right type of oil for DVS by admission, you need to immediately decide on viscosity. Note that specialists, auto mechanics and experienced drivers separately recommend slightly increase the so-called "summer" viscosity of lubricant after the car mileage exceeds 100-150 thousand km.

It is necessary to do it even when the motor normally works on oil with a smaller viscosity. If the oil consumption on the motor with mileage increased slightly, "sweat" the glands, gaskets, etc., then an increase in viscosity of lubricant in some cases allows to solve some problems.

It is important to understand that the viscosity should still remain in the framework that the engine manufacturer has determined. Simple words, in the manual it is usually written that in the unit you can use, for example, 5W30, 5W40 and 10W40.

At the same time, if in the engine earlier, the owner rounded the lubricant 5w30, after 100 thousand mileage it is possible to go to 5W40, and after 200 thousand per 10W40. The only moment that also needs to be taken into account is regional features in which the TC is operated.

If winter in the region is too frosty, then when using a more viscous product, 10W40 may have problems with a cold start in winter. As you know, the strongest wear of the unit (about 70%) occurs at the time of starting the cold engine.

So that this does not happen, the engine oil will need to be changed not only in running, but also taking into account seasonality. It turns out, there will be a 5W30 index (more liquid), whereas it is necessary to fill with a lubricant with an increased viscosity of 5W40 or 10W40.

This approach allows you to ensure confident start and reduce wear in winter, as well as protect details in the summer. The fact is that more viscous oil allows you to raise the pressure in the lubrication system and compensate for the gaps increased as a result of wear.

Also in some cases, the use of a more thick lubricant allows you to reduce the consumption of oil on a volunteer, get rid of the fogging of the glands and gaskets. If simply, the natural wear of the DVS often leads to deviations from the normal operation of the motor. In such a situation, much depends on the viscosity of the oil.

First of all, if problems have appeared, it is desirable to abandon low-grade lubricants and an energy-saving oil oil. As mentioned above, a low low-temperature and high-temperature viscosity can lead to the fact that the problems already existing are in full.

Taking into account the wear of the engine thickness of the protective film when using low-viscosity oils may not be enough, such a film becomes less durable. It is quite obvious that in such conditions, the conjugate surfaces of the parts are extended even more intensively and quickly damaged.

In parallel with this, low-grade oils are distinguished by a significant tendency to evaporate. Simple words, the lubrication is faster consumable to the avgar, and also actively falls into the combustion chamber through masonry rings. As a result, the owner accounts for more often and in the greater volume to top up the lubricant.

If we consider that after the yield of the internal combustion engine, there are such lubricants, additional losses occur through gaskets, glands and other seals, which are not able to maintain maximum tightness over time.

It turns out, B. problem situations It is necessary to pour oil with an increased viscosity at operating temperatures of the motor, for example 5W-50, 10W-50, etc. It is also important to pick up lubricant not only by viscosity, but also adhere to the recommended tolerances and specifications. In the complex, the qualified selection of lubrication will allow to extend the life of the engine to.

What engine oil with a big mileage is better to choose

If you carefully examine the fuel market, then you can see that there are the same products on sale, which differ in the viscosity and oil base. In other words, for example, the product with an index 10W40 may be mineral or semi-synthetic, 5W40 will be semi-synthetic or hydrocracking oil, etc.

So, the difference in viscosity and the distinctive properties of one way or another oil basics In many cases, it allows you to get rid of problems that are peculiar to worn out. As an example, it can be noted that mineral water, which has a SAE index 15W40, differs in a kinematic viscosity at heating up to 100 degrees from synthetic analogs of 5W40.

After refueling the motor with a mileage of such mineral oil at operating temperatures, a thick lubricant is created, the protection against wear is improved, the oil pressure in the lubrication system is increased, there is less loss of lubricating fluid on a voligator. As a result, the old engine begins to work quieter and smaller on mineral, than on semi-synthetic oils or synthetics.

However, it should be borne in mind that some engine factories are separately recommended to use in their motors exclusively. lubricating liquids on a synthetic basis. It turns out that it is impossible to use lubrication on another basis. Cases are noted when problems began even after use in such assembly assets, not the fact that mineral water.

I also add that we should not forget about the fact that with the same operational properties Both the characteristics of the mineral water, semi-synthetic and synthetics differ markedly from each other in terms of antioxidative and heat-oxidative resistance.

This means that mineral oil is faster than others oxidizing and loses its properties, that is, simply agrees. If adding to this also a certain "fatigue" of the engine itself and its systems (leakage of nozzles, encrypting, etc.), the aging of lubricant will occur even faster.

That in the end

Taking into account the above, you can make several conclusions. The first, if the engine has a big mileage, but works fine, then it is better to increase the high-temperature viscosity of the oil, without changing its bases. It turns out enough to go, for example, with 5W30 lubrication to 5W40 (if the use of such a product is allowed by the manufacturer of the engine).

At the same time, it is necessary to continue to cast a synthetic or semi-synthetic product, which has all the tolerances of the motor manufacturer, complies with classifications and specifications. In other words, it is not worth moving from synthetics or semi-synthetics.

You can also use oils that relate to a higher class, while suitable for a particular power unit. It should be remembered that in engines until 2000 release is almost always forbidden to use oils with a low high-temperature viscosity for a shift.

The situation is distributed when the engine already has problems while working:

sealing elements sweat or flow;
appeared;
reduced pressure in the lubrication system;
motor is noisy working;
increased oil consumption, etc.

In this case, the increase in viscosity of the lubricant allows you to eliminate some nuances and reduce noise. For summer, you can try to pour thick mineral water (for example, 15W40) from the list of lubricants recommended by the manufacturer of auto engine. In this case, before winter, it will be necessary to return to a less viscous semi-synthetic or synthetic product again (for example, 5W-40) to eliminate cold start problems.

In the process of seasonal transitions, it is important to take into account that. In some cases, it helps, in others it is better to refuse. For worn and contaminated engine, the use of active flushing can lead to the final output of the unit failure.

Finally, add that any viscous oils are optimally changed every 5-6 thousand km. Regardless of the foundation. The fact is that they are quickly oxidized, and also have in their composition a lot of viscous additives. Specified additives high temperatures Lose properties and "work".

As a result, the lubricant becomes less viscous, and the disintegration products of the additive package additionally contaminate the oil system. As for the preinforcement of mineral water, in this case it is necessary to further reduce the range of planned replacements (up to 4 thousand km.).