Oil for 4 hours of air-cooled. What autoas is better to apply in cars with four-stroke engines

Motor oils for 4-stroke drives with air cooled They differ from lubricants intended for engines with water cooling system. Therefore, when selecting oils, it is necessary to take into account the labeling, the composition of the liquids and the type of engines for which they are designed.

For 4 x stroke engagement engines are characteristic high temperatures In the cylindro-piston group. The oil is not mixed with flammable and does not enter the combustion chamber, therefore, the engine mixture for the specified type of drives must have the following properties:

1. Increased number of additives motor fluid - up to 25% of the total.
2. Stability of viscosity characteristics at various temperature modes. Lubricant should provide fast and easy engine start, as well as an instantaneous oil supply to all driving drive elements.
3. Hemocosal stability. The structure of the mixture should be resistant to oxidation reactions, so as not formed a precipitate and the tag, and the mixture did not become in structure as water.
4. Improved anti-wear and anti-promotional characteristics that protect the engine elements from the effects of tribological loads.

It is not necessary to use the motomala, developed for engines equipped with water cooling in 4 x air cooling motors, these two types of oils contain a different form of additives, the first are calculated on the heating of the cylinder mirror to a temperature of +160 0 C, and for the second, this parameter is - +220 0 S.

Check out the video about the classification of motor fluids:

Standards

It is difficult for a simple buyer to understand the marking of lubricants, so often unscrupulous sellers give fluids for 2 x stroke engines instead of 4 x strokes. By purchasing such products, you reduce the drive resource, so before going to the auto shop, read the generally accepted standards indicating that the engine oil is suitable for four-stroke air-cooled drives:

1. The operational class on the API system must comply with the requirements of SF / CC, not lower.
2. According to GOST Motomalo for the specified drives, the group G.
3. According to the SAE standard, the liquid must meet the requirements of the dealer vehicle. Such information can be found in the service book or on the cover of the filler neck. Air cooling engines It is recommended to fill oil having the designation SAE 30 - Summer Class motor mixesThe specified lubricant is sufficiently thick, to quickly do not dilute at high operating temperature.

Choosing the basic basis of the car, for engines with air cooling system, consider:

1. Mineralka - reduces friction force, reduces the wear of the drive elements, burning does not form a naiga and smoke, using it can be applied with a ethyl or unleaded type of gasoline.
2. The semi-synthetic - is applied with flammable not very high quality, it is recommended for motors with a large load, ensures the stability of its structure during operation, but has increased fluidity, applicable with eilated and unleaded gasoline.
3. Synthetics - prevents nagaro formation, protects the engine from wear, applicable only with unleaded flammable.

Selecting the lubricant, consider the season when the vehicle will be used, summer types of oils begin to crystallize at temperatures below -10 0 s, the winter is kept - -25 0 s, all-season provide motor protection at any time of the year. Their operating temperature range is available in SAE classification.

On the canister with high-quality product it is indicated that the lubricant is suitable for 4 x air-cooled stacks. Properly chosen fluids must meet the requirements of the vehicle dealer to ensure normal operation of the motor. Preference is worth paying the goods famous brandswhich sellers have a quality certificate. Incorrectly chosen engine oil will lead to an increase in the nagara formation, increased fuel consumption, fast motor failure.

Choosing a specific brand of oil, note that the motorcycle motorcycle differ in the quantitative composition of antifriction additives. This is connected with the mode of operation. power aggregates, Snowmobiles, for example, are designed for limit load modes, and the scooter is used with much better operating conditions. In lubricants for the specified types of equipment there will be a different composition and additives.

Petrol four-stroke air cooling engines are widely used on garden-Parking Technology - Motoroblocks, motor-cultivators, lawn mowers, snow blowers, motor-pumps, mini-tractors, on construction and road construction equipment - benzogenerators, vibrating plates, vibration machines.

Before starting the engine operation Explore the instruction manual. Many buyers, unfortunately, do not. Therefore, the most elementary questions on the use of the motor arise.

Tip: Read the engine manual !!!

First: which gasoline must be used.

We advise you to use clean, fresh, unleaded gasoline with octane number AI92. Air-cooled engines are not designed to work with the Fuel AI95 and AI98. In the 95th and 98th gasoline contains additives that destructively act on the piston engine system, leading it to overheating and breakage.

Do not mix oil with gasoline. This can lead to a motor malfunction that is not covered by a warranty.

Use fresh gasoline AI-92 with a storage period of not more than 30 days !!!

Secondly: what oil to pour into the engine crankcase.

Many consider the automotive oil of well-known brands the best for use in engines for a motor-block (motor-cultivator, snowmobile, electric generator, motor-pump, etc.). This is completely wrong. Automotive oils are designed to work in water-cooled engines, and not with air. The boiling point of automotive oils is lower than that of oils in which special additives for air-cooled engines are contained.

Use oil with quality class SF, SG, SH, SJ, CD or higher. Do not use additives to oil. Choose an oil viscosity based on the ambient temperature.

* Check the oil level more often at elevated air temperature.

SYNTHETIC 5W-30 (-30 to 40 ° C). Synthetic oil, Provides engine operation throughout the temperature range, as well as easy start and lowered oil consumption.

Pour oils only indicated in the engine instruction !!!

Always follow the oil level. The level should be on the last thread of the fuel neck in the horizontal position of the engine (as shown in the figure). Flip and drain holes are on the front and rear of the engine.

Oil Pouring Level in Engine

On lawn miles, pay attention to the measuring probe. In the probe engine with a vertical shaft indicated tags.

IN different engines Different amount of crankcase. If you have 4, 5.5, 6.5 or 7 hp engine - I need to pour 600 ml. Oil. In engines 7.5 hp 900 ml poured. In the motors of 8, 9, 11, 13 and 15 hp Accordingly, 1.1 liters.

Third: Engine start.

With the first or cold start of the engine, there is an increased load on the piston system. High revs Can harm the motor. Therefore, it is necessary to run the motor for 1/3 of the position of the gas. And you need to run on medium turnups.

Fourth: how running engine running.

Air-cooled engines "do not like" idle move. Run the engine, warm out for 1-2 minutes. and enroll in work. During running, try to stick to 50-75% of the load and make mandatory breaks in work in 20-25 minutes. After a break, when the engine has cooled (15-20 minutes), you can continue to work again. In this mode, the engine must work the first 4-5 hours, after which it is necessary to replace the oil. The runoff is over.

The main causes of engine breakdowns

Remember !!! Engine breakage occur mainly from improper operation.

The first reason for breakdowns: not a closed fuel faucet.

When the engine does not work, and the fuel valve is open, the carburetor is transfusing and the "pouring" of the candle. Also gasoline falls into the engine crankcase. And this will lead to excess pressure during engine operation and squeezing the glands. Then this mixture of gasoline and oil will fall into the combustion chamber and through the exhaust valve to the muffler. Gradually, the muffler will be clogged by oil residues and the engine will lose cravings.

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One of the main factors affecting the engine resource internal combustion, It is the quality of engine oil and its replacement. To understand which oil is better to pour into the engine of the fiberboard, you need to prevent the specifics of its device and work well.

Specific requirements

Most modern motoblocks (Motoblock rating can be studied in this article) equipped with four-stroke gasoline enginesnot having in its design oil pump.

The bottom head of the connecting rod, which is a sliding bearing, is lubricated by the oil with a special protrusion on the bottom cover of the connecting rod, the native crankshaft bearings, the gas distribution mechanism and the cylindropional group are lubricated with the splashes.

Also these engines have unstable temperature mode Due to air cooling.

For more information about the 4-tact engine, see the video:

Thus, engine oil for 4 clock engines Motoblocks must meet the following requirements:

• Low kinematic viscosity in a large temperature range is needed to avoid oil starvation when driving the engine to operating temperature.
• The use of viscous oils in engines that do not have lubricants under pressure can lead to a burden on the surface of the connecting rod cervix followed by metal tooling at this place and engine jamming.
• The stable composition of the package of anti-friction and native additives will allow the oil for a long time to maintain its properties with regular cooling heating cycles during the operation of the motoblock.
• The high strength of the oil film is necessary to protect the cylindrophone group from the jackets when the engine overheating during hard work in hot weather.
• The detergents provided by the appropriate package of additives should counteract the fallout of the precipitate and the lacquer formations in the engine pallet and on the surfaces wetted surfaces.
• Low Coxiability is relevant for air-cooled engines, as the oil falling into the zone piston rings, heats up in this place to a temperature of 270-300 degrees.
• Nagar's education will lead to the loss of mobility of piston rings and reduce compression with simultaneous oil overrun.

Based on these requirements, you can describe technical requirementswhich must match the oil for 4-stroke engines of motoblocks, so:

• The class of high-temperature viscosity on SAE is not more than 30 in temperate climates, 40 - in hot. Low-temperature viscosity index - no more than 10W. These requirements are satisfied with the common oils of Types of 10W30, 5W30, 0W30, 5W40, 10W40 (the last two - at temperatures of 30 or more degrees).
• Pure summer options - SAE 30, SAE 40. It is necessary to carefully read the characteristics of the oils: a number of specialized oils for garden equipment with a viscosity of 5W30 are intended solely for winter use.
• The base of oil: synthetic or semi-synthetic, as in the specified viscosions of viscosity, mineral oils are practically not found. In addition, they have significantly worse stability compared to synthetics and semi-synthetic.
• A number of manufacturers of lubricants have special line of oils for garden equipment on a mineral base, in this case low cost in the opposite direction in the form of a frequent replacement.
• Quality class according to API (a complex parameter that defines antifriction, anti-plating and detergent properties of engine oil, as well as many other parameters) not lower than SG.

It should be understood that all the requirements for motor oils for Motoblock Kaiman, Texas, foreman, Viking, Sadko, Don, Profi, Carver and respond to common car oils, the only difference can be its flow rate and the amount of cargo formed during long-term operation in the air cooling engine.

For this reason, although this material also considers specialized lubricants, in the absence of the possibility of their acquisition you can always use the corresponding automotive engine oils described.

Classification of oils

Husqvarna SAE 30, Husqvarna Universal SAE 30

Mineral motor oil produced by the Swedish company both for the factory refueling of its products and for subsequent maintenance. It is indicated by the use of a specially selected package of antifriction additives.

The minitractor is very popular and widely used in housing and communal services, on construction sites, in rural works and production. Minitractor scout is very durable, economical and durable technique.

For effective clearing of territory from snowdrifts, there are many models of tireless snowmobile machines. Everything is about the manual electrical snow blower.

KAMAZ 65115 refers to one of the oldest episodes of this plant, the issues of which began in 1998. By clicking on the link, familiarize yourself with the specifics of the work, the advantages and disadvantages of KAMAZ 65115.

Not suitable for operation of motorized equipment at low temperatures. Package price of 0.6 l - from 390 to 410 p.

Patriot Supreme HD SAE 30

This oil, also produced by one of the well-known American manufacturers of garden equipment, is intended for summer exploitation in gasoline and diesel motoblocks, mowers, minitractors. For ease of use, the package has a long nose. The base of oil is mineral. Package price 0.95 L - within 340 rubles.

Patriot Specific High-Tech 5W-30

Semi-synthetic engine oil for year-round operation of garden equipment with four-stroke engines: Motoblocks, minitractors, snow removal machinery

The class of low-temperature viscosity is 5Wregates the oil freezing temperature of at least -38˚ C.

Package price of 0.95 l - about 410 p. This oil It is used for the motoblock of Patriot Ural, Patriot.

Patriot Expert High - Tech SAE 10W40

Synthetic oil for operation of garden equipment in a hot climate and at elevated loads, for example, when plowing large areas of Earth Plow. Package price 0.95 l - 420 rubles.

Home Garden 4 Stroke Oil HD SAE 30

Available for the price of mineral-based summer engine oil. The price of a liter jar - 240-250 r.

ELITECH 4T Premium SAE 10W30

Semi-synthetic engine oil for year-round operation of motorcycles. Includes antifriction additives based on the Molybdenum disulfide, which, on the one hand, provides good protection of the engine from wear, on the other - requires an attentive relationship to the timing of oil replacement.

The price of liter packaging is 420 rubles, packaging in 0.6 liters - 340 rubles.

Elitech 4TD SAE30 Standard

Summer mineral oilAlso includes a package of molybdenum-containing additives. Lyric packaging of this oil costs about 300 rubles.

Elitech 4tdultrasae 5W30

Oil 4-stroke for engines of motor-blocks, year-round used in the most difficult jobs. Has a synthetic foundation. Package price of 0.6 l - 480 rubles.

Enem SAE 5W30.

Available synthetic engine oil from a domestic manufacturer, which can be used in motoblocks and other techniques with petrol engines In the summer and winter. Price of liter packaging - 380 p.

Enem SAE30.

Cheap summer oil from a group of mineral lubricants. The price of 180 rubles per liter allows you to compensate for its average quality more frequent replacements.

Encore SAE 10W40.

Unlike most motor oils for garden equipment, this oil has an APISJ / CF certification, which allows to compare its composition and quality with conventional budget car masses. Double certification indicates applicability not only in gasoline (SJ), but also in diesel (CF) engines.

A relatively high high temperature viscosity makes it unwanted using this oil at moderate and low temperatures. The main advantage of this oil is low price: Total 200 rubles per liter.

REZOIL PREMIUM SAE 5W30

Domestic semi-synthetic oil For gasoline and diesel gardening equipment (corresponds to the APISJ / CF specification). Due to low viscosity in a wide range of temperatures, it can work perfectly in motors with lubricator lubricant both in summer and in winter. The capacity of 0.95 liters is within 210 rubles.

REZOILRANCERUNILITESAE 30.

Exceptionally summer oil for gasoline and diesel motoblocks and minitractors. The type of foundation is not specified on the package, but the price of 140 rubles for 0.95 liters causes it to assume that this oil is mineral.

Rezoil Titanium SAE 10W-40

This semi-synthetic oil can also be used in gasoline and diesel enginesBut the viscosity index directly indicates the undesirableness of its use in a moderate climate. Packaging in 0.95 l volume costs 200 rubles.

Maxcut 4thdsae 30.

Summer mineral oil from a little-known manufacturer in Russia promising an increased content of antifriction additives and the possibility of using oil in highly loaded gasoline and diesel engines. The price of a liter jar - 240 rubles.

MANNOL ENERGY SAE 5W30

The famous auto chemical manufacturer from Germany has a line of engine oils for garden equipment. This semi-synthetic oil can be used in any garden technique with four-stroke engines throughout the year. Lyric packaging will cost an average of 420 rubles.

MANNOLMOLIBDENBENZINSAE 10W40 for four-stroke engines with air cooling

The semi-synthetic oil, the composition of which is improved by using a package of antifriction additives based on the Molybdenum disulfide. In the motoblocks it is worth using during hard work on hot weather. A liter of this oil costs 330 rubles.

Four-stroke oil Champion 4-Cycle SAE 30

This company from the United States also does not need special performances. This mineral oil is designed for years of operation in motoblocks, trimmers and lawn mile. Packing 0.6 l (250 rubles) and 1 liter (360 rubles).

Champion (champion) SnowThrower 5W30 for engine from a motor-block or cultivator

Mineral base engine oil, calculated exclusively on winter operation. It is noteworthy that at the time of release it was certified by the strictest at that time the APISL quality standard. Lyric packaging costs about 380 rubles. This oil is recommended for a motoblock.

Summer mineral oil from the famous Russian-Chinese brand. The quality of the product describes the certification according to the outdated APISG / CD standard, which to some extent pays off low price (180 rubles per liter).

It will be a good option in easy work, especially if the engine of the motor-block or cultivator is noticeably worn out. Use in difficult working conditions this oil is not worth it.

Caliber semi-synthetic SAE 5W30

Winter oil from the same manufacturer on a semi-synthetic basis. A more perfect base made it possible to reach the quality to an acceptable APISJ / CF standard. At the same time, the manufacturer shows a fairly low flash point - 228 ° C, which means its high evaporation and, accordingly, considerable consumption of a voligator.

The price is comparable to other oils of this quality group - 240 rubles per liter.

How much to fill

Most of the motoblocks presented on russian market, equipped with engines of the Hondagx family, their Chinese clones or similar to the construction of Subaru-Robin motors.

For a single complete refueling of oil such a motor, no more than 0.6 liters of oil will be required - that is why such a volume of packaging is popular with manufacturers. More powerful modifications of these motors can accommodate liter and more oils.

Row of engines, the design of which includes an additional lowering gearbox, have separate space For his lubricant.

Table of filling volumes for original Honda engines (Honda) and similar Chinese

SUBARU engines

If your motor-block is equipped with Briggs & Stratton Engine

Replacement

Replacing the oil in the motor motor motor is carried out with the frequency indicated in its operating manual, it is usually 60-80 hours. The specified interval should be reduced under severe working conditions or the use of cheap mineral oils.

Before replacing the oil on the motoblock, place it so that the engine is horizontally, and warm the engine so that the oil is better fastened. Then turn the plug of oilseabolic neck and drain plug, Substituting the capacity of the appropriate volume under it.

Be careful not to burn hot oil.

After waiting for the moment when the exhaust oil stops dripping, wrap the drain plug in place and flush through the clean funnel to the crankcase fresh oil, guided by the passport volume and tags on the dipstick of the oil refining neck.

Since the engine lubricant is carried out only by spraying the oil from the crankshaft, strive to always maintain the oil level on the Maximum label. Low-locked filled holes without probe must be filled with oil until it appears on the thread.

If the motor-block engine is equipped with a downward gearbox, do the same operations with it. Most often the gearbox does not have an oil probe, and in order to measure the right amount Oils, take advantage of a small capacity of the known volume.

Oil for 4-stroke engines has a number of differences from analogs intended for two-stroke motors. In the case of a two-stroke engine, oil lubrication is made, which is pre-dissolved in gasoline and, as a result, burns with it. In the engine four-stroke, on the contrary, everything is done so that the oil does not penetrate the combustion chamber.

Four-stroke motorcycle engine

Thus, the oil in the four-stroke engine should provide stable lubricating properties for a longer period as possible.

Accordingly, the content of various additives in modern engine oils for four-stroke engines significantly higher and reaches 25%. Considering the lack of special requirements for car accidents for four-stroke engines, as a selection of additives is not taken into account ash content. As a rule, it can reach 2% or more. In addition, such lubricants are different high levels Smoke.

The principle of operation of the four- and two-stroke motor

Before considering the main differences between lubricants for 4-stroke engines, it is necessary to find out what the motors are different from the two-strokes. One of the elements of the four-stroke motor is an oil crankcase, on an ongoing basis supportive level lubricant. From the crankcase, the lubricant with an oily pump is transmitted to the lubricant system and is on the walls of the cylinder. The result is the friction of the piston about the wall is not "dry", but in the form of sliding over the oil film.

In order for the oil to penetrate the combustion chamber, it is cut back into the oil bath. Special oiling rings. In the case of four-stroke engines, the power of which does not exceed 5 l / s, the oil pump is most often absent. The oil distribution in them is carried out at the expense of the oil mist generated by the rotating crankshaft.

Loads in such engines are much smaller, so oil flow is provided regularly in the required amounts, which has a positive effect on the durability of the motor.

After one pouring lubricant in the crankcase, it is required only once during the season. At the same time, it is also necessary to control its level, although the car will not disappear anywhere. Moreover, modern engines Equipped with sensors capable of reminding changes in the oil substance levels.

Principle of operation of the 4-stroke engine

The lubrication system in two-stroke motor acts otherwise. In engines up to 30 hp Preparation of a mixture of gasoline with oil in a 50: 1 ratio is necessary. At the same time, it is not necessary to shake the container after filling with gasoline and lubricant, since modern autosals are self-drying. Even despite this, sometimes there is a shortage of oil for high-quality lubrication of the cylinder mirror. As a result, the engine begins to work "dry", which causes a corresponding reduction in its resource.

In motors, the power of which exceeds 40 hp, there is a tank for a car, which occurs automatic preparation of the mixture in the necessary proportions. A mixture of oil, air and gasoline first enters the cylinders and burns. In this case, its combustion is not so effective because the contained in fuel mixes Lubrication causes a decrease in the energies. In addition, efficiency is reduced due to the temporary discovery of the graduation and intake windows of the cylinder, the result of which is a partial loss of a unburned mixture and emissions to the atmosphere or water.

Differences of oils

So, consider than the oil for two-stroke engines differs from 4-strokes. As already mentioned, the main fundamental difference between the two types of engines is that the two-stroke motors are lubricated with a lubricant dissolved in gasoline and with it as a result of combing. In a number of two-stroke engines, there is a separate system for supplying a lubricant to the crankcase, but the point of this does not change - the lubricant also burns simultaneously with gasoline.

In the case of four-stroke engines, measures are being taken to prevent oil from entering the combustion chamber.

Accordingly, the basic requirements for cars differ:

• in two-stroke engine It requires as complete combustion of the oil as possible, in which the minimum tag remains in the form of ash and soot;
• lubricant in the 4-stroke engine should provide stable lubricating characteristics as long as possible.

At the beginning of the era of internal combustion engines for the manufacture of lubricants, a simple distillation of oil was used. Such substances were used in both varieties of motors. It was associated with the small specific power of the first auto motors, as well as low loads on the interface of the parts and the wear, which they caused.

Oil for 4-stroke engines

Nevertheless, subsequently the growth of the specific parameters and engine speeds led to the fact that such cars have exhausted their capabilities. As an exit of the current situation, it was decided to apply special additives in the car, called additives. They are able to significantly improve certain lubricant parameters.

In self-mixing, a whole range of such additives is usually applied:
anti-wear;

• detergent;
• contamilated;
• antioxidative;
• heavy etc

As a result, the content of additives in modern oils for four-standing engines can be up to 25% of the total mixture. Considering that there are no special requirements for lubricants for such engines in terms of combustion, during the selection of additives, you can not take into account ash content. Consequently, the ash of such oils may exceed 2%, in addition, such autosals can have high smoke.

The use of "4-clutter" oil in a 2-stroke engine

In the case of use intended for 4-cell lubricant engines in two-stroke motorFormed in the process of combustion of oola oil sends to the pistons and walls of the combustion chamber. At the same time, the residues of combustion form with a motor lubricant abrasive powder, which has an impact on the cylinder mirrors, similar to this emery paper. As a result, this abrasive literally saw details, as a result of which their life is significantly reduced.

Quite serious harm is also delisting the soot that settles in the grooves of piston rings. As a result, the rings lose mobility, which leads to a decrease in engine power. Soot, laid in exhaust windows, gradually reduces the size of their cross section. This leads to difficulty producing exhaust gases, that is, again, to loss of power.

In addition, the Nagar, which includes soot and ash, and laid on the heads of cylinders and pistons, causes the development of such negative phenomena as a cylinder ignition and detonation. It also causes a reduction in power and reduced motor resource. As a result of nagar deposits on the electrodes in the ignition candles, their closure may occur and, accordingly, stop the engine.

Classification

JASO classification

At the moment, the most advanced for use in 4-stroke engines are oils that are simultaneously the JASO MA-2 and API SN (USA) specifications. Russian GOST 17479.1-85 was adapted under sAE classification. Car manufacturers are recommended to use for four-stroke engines of an automated vehicle, which are viscosity, the class of which is in the range between 5W20 and 10W40.

At the same time, the viscosity is higher, the better the operation of the engine oil at elevated temperatures. This must be taken into account in the process of selecting lubrication in various climatic zones.

Similar to any other, motor vehicles for 4-stroke engines are divided into three varieties:

1. Synthetic, non-nagar and possessing excellent protective characteristics. Can be used in extreme operating conditions.
2. The semi-synthetic and mineral high-quality minerals are characterized by good protection against wear, lack of smoke in the combustion process and maintaining the purity of the engine. They are well suited for everyday driving.
3. Special semi-synthetic lubricants have detergent properties, a small value of the flow rate, as well as high characteristics stability. Such lubricants can be used when using low grade fuel.

How to choose 4 clock oil

In many examinations of oils for four-stroke engines, foreign manufacturers are presented mainly by special motomas, and domestic - ordinary motor cars. At the same time, it is explained that special 4-stroke oil for motorcycles differs from automobile only by a lower number of antifriction additives. At the same time, the usual consumer is enough to understand only the two most important criteria that determine the advantages of a certain brand: viscosity and quality.

Choose a suitable oil

Viscosity motor lubricants For 4-stroke engines is classified in our country according to GOST 17479.1-85, which is already mentioned above, adapted to SAE. According to this classification, three types of automotive oils differ:

1. A group of automotive for the engine operation only in the summer. Such lubricants rarely go on sale, their marking: SAE 20, 30, 40. Lubricants whose viscosity exceeds SAE 60, not used in motors.
2. Technique with 4-clock engines in the winter period is practically not used, so we give only the designation of such lubricants: SAE 0W, 5W, 10W and so on to 25W.
3. Machines All-season are produced by adding special additives in basic oil. Such additives make lubrication sufficiently liquid for easier engine start at negative temperatures. They also provide high protection of all engine work items. All-season varieties are indicated by SAE as 10W40, 15W50, 10W60 and other numeric combinations that determine the range of use of lubricant in accordance with the ambient temperature.

The number located in front of the letter "w" indicates a negative temperature at which the car thickens, and the digit after the letter is the maximum temperature at which the engine is uninterrupted.