Motor oil is the main lubricant for any gasoline or diesel internal combustion engine. The volume and characteristics of the lubricant depends on the mechanical characteristics of the motor, its power and displacement. The oil filling volume is set by the car manufacturer taking into account all technical characteristics, therefore, when changing the lubricant, it is necessary to follow the manufacturer's recommendations and take into account some features.

1 How to correctly determine the amount of oil in the engine?

There are no universal volumes, each engine requires the amount of oil that is prescribed in its technical characteristics. Differences in filling volume can be both for different engines of the same volume, and for units of the same manufacturer, but with a different degree of boost. Diesel engines, especially some turbocharged versions, require 1-1.5 liters more oil than their gasoline counterparts.

The most correct way to find out how many liters of oil are included in a particular engine model is to read the information in the operating manual. This characteristic is necessarily prescribed in the documentation by the manufacturer, as well as the recommended brand and type of fluid used. That is, before the replacement procedure, it is necessary to know exactly not only the required volume of oil, but also its type (synthetics or semi-synthetics), and, if possible, the brand of the lubricant manufacturer.

Looking at the technical documentation for the car, it should be understood that the volume figures indicated there are presented for filling into the engine, in which it has not been previously used. If the vehicle's mileage exceeds 20-30 thousand, then the required amount of oil will be at least 400-500 g less than stated in the operating manual.

This is due to the fact that part of the old lubricant during operation settles on the walls of various metal parts, part remains in the pallet, and some remains in hard-to-reach places inside the power plant. It will be possible to completely remove traces of the old grease in the engine only after it has been completely cleaned with the analysis of the main parts and structures. If a volume of 4 liters is prescribed in the manual, then after draining no more than 3.6-3.8 liters should be poured, given the fact that part of the oil (100-200 g) is taken over by the oil filter.

2 Oil change on a car, step by step instructions

For the model range of VAZ cars with gasoline eight or sixteen-valve engines with a volume of 1.5 or 1.6 liters (type 2111.21114.21124, etc.), with which most popular models are equipped, the recommended amount of oil is 3.5 liters. But given the residue that is inside the engine after draining and installing a new oil filter, you first need to pour 300-400 grams into the filter, and after a while 3 full liters into the engine itself. Further, the level is corrected by means of a dipstick, so that it is at the mark between Min and Max. Directly during replacement, a slight increase in volume is allowed (by 100-150 g of grease) so that the level is slightly closer to the maximum.

Oil change for different types of engine is carried out according to the same algorithm:

1. drive the car onto an inspection pit, lift or overpass;
2. turn off the engine, allow the oil to drain into the crankcase and cool;
3. prepare a suitable container for draining (at least 5 liters in volume);
4. open the hood and remove the cover from the filler neck on the engine;
5. unscrew the drain plug of the pallet on the bottom;
6. allow the liquid to drain as much as possible (wait 15-20 minutes).
7. install a new filter (pour a little oil into it, 200-300 g);
8. tighten the drain plug and fill in the recommended volume (in our case, 3 liters).

After 2-3 minutes, check the level of the filled oil on the dipstick, if necessary top up to the appropriate mark. Then start the engine and let it run for 10-15 minutes on new oil. Stop the engine and measure the oil level again, if everything is normal, the process is complete. In case of deviation in any direction, drain or add liquid until the recommended mark on the dipstick is reached.

3 Insufficient lubrication in the engine - possible consequences

Any modern motor operates under strong mechanical stress at high temperatures. The working process proceeds under the action of high friction and heating, therefore, to lubricate the contacting parts, create protective surfaces and partially cool the process, it is necessary to fill the engine with engine oil, which is sprayed over the parts under very high pressure.

An insufficient amount of lubricant leads to an increase in "dry" areas of friction, therefore, the heating of individual parts and elements of the system increases, the level of wear of the main mechanisms is several times exceeded, which subsequently leads to jamming or failure of the motor.

A critical drop in oil level is indicated by a special indicator on the instrument panel. It is even found on older cars, along with sensors for the fluid level in the brake system and the battery charge. But a slight decrease in the level, if the engine "ate" the extra 200-300 g, can go unnoticed by the indicator counters, while the engine loads increase, which quickly reduces its resource.

In the event of a malfunction or low sensitivity of the sensor, a sure sign that the level is lowered to near-critical marks is noise in the area of \u200b\u200bthe hydraulic compensator system and a constant increase in the temperature of the power unit, due to which the cooling system (fan) works more often than usual, as well as the appearance of other outsiders or abnormal noises around the motor.

4 Increased level - acceptable but not desirable

Overfilling oil is not as critical as underfilling, but it also entails additional loads on various systems inside the motor, therefore, an increased amount of fluid in the system should not be allowed. High oil levels increase engine pressure and stress on the oil pump and filter, which contributes to higher fuel consumption. Excess oil also negatively affects gaskets, oil seals and seals, because of which, over time, they can begin to leak, breaking the tightness of the system, oil will flow out of the engine, while it can mix with antifreeze, which is strictly not recommended.

In turbocharged engines with certain design features, the manufacturer allows an increased consumption during operation, therefore, refilling is carried out more often than in conventional units, and when replacing the level should be close to the maximum mark. Checking the amount of oil on these types of engine is carried out at least every 2-3 days.

On other types of engines, it is recommended to check the level before driving every 5-7 days of active vehicle operation. The check is carried out on an unheated engine, in addition to the oil level, pay attention to changes in its color and structure, in case of its rapid contamination, it is recommended to diagnose injectors and valves before the next replacement, and if necessary, carry out a comprehensive flushing of the unit or even change the type of oil used.

Following the subside of the first emotions after the acquisition of the long-awaited car, the newly-made vehicle owner is waiting for measures to keep the car in order. Changing the lubricant is one of the regular procedures required during operation. which one to choose and what to be guided by? What causes the engine to "eat" the lubricant most often and how to deal with it? We will try to answer these and some other questions in this article.

Engine oil

The main component of the lubricant for the power unit is the oil base, which is:

• mineral;
• semi-synthetic;
• synthetic.

According to the indicators of chemical composition, all engine oils are divided.

In addition to this characteristic, parameters such as viscosity (based on which oils are classified according to the SAE indicator) and additives (API or AGEA) are important.

Oil base

So, mineral liquids are obtained by refining oil, synthetic ones - through chemical synthesis, and semi-synthetic ones - by mixing mineral and synthetic.

Many people prefer semi-synthetics, considering it the best option in terms of price-quality ratio.

Viscosity index

Reducing the friction of engine parts is a problem that is being solved. This is especially true for the pistons in the cylinder.

This parameter is classified by SAE, which means the state of oil viscosity at different temperatures. Thus, it refers to the minimum and maximum level within which the motor can operate efficiently and safely.

The letter between the numbers, for example W, means winter, which is translated from English as "winter". But in the name of the oil, it means all-season, that is, the possibility of using it both in winter and in summer.

Additives

Additives classified by API are of different types: API SJ, API CF-4, API SJ / CF-4. In this case, S means the type of fluid for a gasoline unit, and C for a diesel unit. As you can see, there are fluids separately for one and the other type of motor, as well as suitable for both.

Winter engine oil

In order for the engine to start easily in winter, some features should be taken into account. Most of the lubricating fluids used in Russia are of an all-season nature. But experts agree that the recommended engine oil in cold weather should be special, since operating conditions in winter differ from summer ones.

In this case, a lot of parameters should be taken into account, such as the recommendations of the vehicle manufacturer, engine power and wear, year of manufacture of the machine, systematicity and nature of operation, and more.

For example, if a car hibernates in a warm garage and is used only from time to time, then the owner should hardly think about changing the oil for this period.

At the same time, if the engine is far from being in the best condition, then no expensive oil will save it. In this case, only repairs are required.

Well, for modern cars, they do not save on oil. Then the motor will last longer and better.

How much oil needs to be poured into the engine

To accurately answer this question, you need to know the make and model of the car, since the volume may differ for each car. The information can be retrieved from the vehicle manual, which contains the required quantity. Nevertheless, even with this information, in practice, car owners often cannot do without difficulties.

How much oil do you need to fill in the engine? After all, the norm should be strictly defined.

If you take a domestic car, then for an engine volume of 1.8 to 2.5 liters, three and a half liters of oil are required. Therefore, first three liters are poured, and then, after a few minutes, after checking the measurement, the rest is added. At a low level, it is gradually topped up in small portions until the required level is reached.

For cars of foreign production, with the same oil, as a rule, more is required - from 4.2 to 4.4 liters. Refill it in the same way as when refueling domestic cars.

Lubricating fluid for VAZ

Oil in the VAZ engine, as mentioned above, is poured in an amount of three and a half liters. However, the nominal value is higher at 3.7 liters. In this case, you need to pay attention to the minimum and maximum marks on the dipstick, depending on what and add the required amount. When replacing, it is not possible to drain all the oil. And therefore, a smaller volume is required, which is indicated by the manufacturer.

Engine oil mileage

On average, for passenger cars, the indicator varies from fifteen to twenty-five thousand kilometers. However, in addition to the recommended mileage, parameters such as driving style, type and quality of fuel should also be taken into account. If the oil has been used for a long time, overheating should be avoided because too high a temperature is bad for it.

If the engine "eats" oil

If there is a constantly decreasing amount of oil in the engine, the reason for this may be either poor quality or emerging engine problems.

When the engine "eats" the oil, it can be added over and over again in small portions. But in this way the problem is not solved, but only the time is delayed when a full inspection and repair of the power unit is required. If this greedy consumption is not related to the quality of the lubricant, then the reason may lie in combustion in the cylinders or seepage through a poor seal.

Combustion can be easily identified by observing the color of the exhaust gases. If they have a bluish tint, the problem lies in. Even if you turn off the engine and look for the presence or absence of a thick black coating, you can determine this malfunction. There can be only one solution in this case - a complete replacement of both the oil scraper and compression rings.

But besides this, the cause of the malfunction can be, as already mentioned, different seals and gaskets. Usually it is rubber seals that lose their properties over time. In this case, oil flows usually at the junction of the crankcase and the cylinder block or the strip of the cylinder block and the timing cover.

The largest consumption is usually caused by damaged crankshaft and camshaft oil seals. Then the oil flows and you can see traces of it if the car has stood in the parking lot for some time.

It is best to immediately contact the technical center as soon as such problems are found. Then repairs can be quite inexpensive. And in the event that the problem is started, small malfunctions will entail more serious breakdowns, and then it will not be possible to do without significant financial investments.

But it can also happen that the oil was filled, which does not correspond to the viscosity recommended for a particular vehicle. As a result, even very good engine oil becomes too fluid. Because of this, the necessary protection for the cylinders is not provided, and it itself begins to burn out.

This is considered normal for every fifteen to twenty thousand kilometers from one hundred to two hundred milliliters. If, at a given mileage, you poured in a larger amount of fluid, then we can talk about possible engine problems.

Of course, too much lubricant consumption is usually not associated with serious malfunctions. But nevertheless it is impossible to ignore the problem. Moreover, wear on the rings leads to a loss of power during operation, and also affects fuel consumption.

Other causes of lubricant leakage

In addition to those that are most often found and described above, there may be other reasons when, knowing how much oil needs to be poured into the engine normally and having provided it, you have to top up it more and more:

• the intake manifold control system has broken;
• the engine fluid level sensor has lost its tightness;
• the filter element is leaking;
• too much oil is poured, due to which its working pressure increases - because of this, the load on the rings and the oil seal increases, which can also become unusable;
• non-use of transport for a long period of time, when, due to downtime, the sealing elements with oil seals can dry out;
• poor ventilation - if the gases collect in the crankcase, then the pressure in the system will be critical and will squeeze out consumables.

So, now it is clear how much oil is needed in the engine when replacing and refilling during normal operation. If more of it is required during operation, this indicates emerging problems that are best solved without waiting for more global ones to appear.

Engine oil consumption is determined depending on the amount that burns out in the engine. can speak either of its poor quality (the lubricant then burns out excessively), or of a malfunction of the engine itself (a leak occurs, most often through the valve seals and oil scraper rings). Everything will depend on the specific numbers and additional symptoms that may appear with a burnout of the lubricating fluid.

How is engine oil consumption calculated?

To determine the rate, not the mileage is taken into account, but the consumption of the fuel resource. This indicator is more accurate than the distance traveled, because when you stand in traffic jams, the oil is depleted even more, and the odometer does not change its value.

It is customary to calculate the oil consumption in the engine by its volume of 100 liters of fuel spent on combustion.

To find out the oil consumption rate in your car's engine, you need to use the calculation formula and calculator, or use this online form. It involves calculating the permissible amount of oil for waste according to the type of engine, the volume of operating oil and the amount of fuel consumed, taking into account the state of the piston group.

Calculated formulas for oil consumption

General actual oil consumption for waste during its operation cycle (from replacement to replacement) can be calculated using the formula:

Qy \u003d ∑q + (Qs-Qsl),

Where ∑q is the oil topped up during the cycle (between TO); Qз - filled when refueling; Qsl - drained when replacing.

And here the consumption of the filled oil in liters per 100 liters of fuel defined as follows:

Mz \u003d V / (P * k),

Where V is the capacity of the engine lubrication system; P - consumed fuel k - coefficient taking into account the wear of the piston group (k - for a diesel car 1.25; gasoline 1.15; turbo 1.3).

Oil consumption rates increase up to 20% for vehicles after major repairs and in operation for more than 5 years.

Engine oil consumption rate for waste

For passenger transport a normal indicator of waste is a consumption of 0.005 - 0.025% per 100 liters of fuel, which is approximately 5 to 25 grams of oil per 1,000 km. In a worn out engine, up to 0.1% and 100 gr. by 1000 km, respectively. Well, if the car is working at the limit or has a turbocharged or diesel unit, then this rate will be even greater.

For freight long meters oil consumption rate 0.3 - 0.4% of fuel consumption. The calculation formula uses the amount of burned fuel and added oil during this period. But this calculation of oil consumption, assumed by the automaker Scania, is relevant only for heavy cars with a large engine. Calculations of the consumption of lubricating fluid in passenger cars, both with diesel and gasoline engines, have a slightly different form.

Engine oil consumption rate per 100 liters. fuel for passenger cars

For VAZ carburetor cars, the norm is a consumption of 0.3 to 0.4 liters. for 100 liters of fuel.

A gasoline engine operating at the limit of its capabilities can consume from 0.4 to 0.6% at 100 hp. consumed fuel, which is approximately 400 - 600 grams of engine oil per 1000 km of run. With a diesel engine, the situation is exactly the same - the consumption of lubricant by the engine increases by 0.5%. But if these are forced turbodiesels with two turbines, then the consumption can reach up to 3% of the volume of oil poured into the engine.

Please be aware that oil consumption rates significantly increase for vehicles after overhaul and in service more than five years.

The average indicator of the engine oil consumed by the engine after a run of 150 thousand km is 0.35 - 0.55 liters.

Method for determining oil consumption

Oil level on the dipstick

Determination of the actual value of the specific consumption of engine oil for waste is carried out with a mileage of 200-300 km. During the test drive the car must be technically sound. The oil level in the crankcase must be between the "MAX" and "MIN" marks on the engine dipstick. Before the test run, it is necessary to warm up the engine, the oil temperature should be 80-85 ° C. Drain the oil on a level surface. It should drain from the pallet within 15 minutes. For the accuracy of the result, it is advisable to determine not the volume, but precisely the weight, since the amount of lubricant remaining in the filter can be found only by weighing it.

How to use the calculator

One of the main roles in this calculation is played by the volume of fuel burned and the volume of operating oil, as well as the type of engine. It is with respect to this volume and the specifics of the work that the specific oil consumption is calculated.

To calculate the specific oil consumption in the engine, you need the following data:

1. In the field "fuel" - enter the average fuel consumption in liters, per 1,000 km. mileage (by default and based on the calculated formulas, this is 100 liters);
2. In the field "oil" - the volume of oil that is regulated by the manufacturer as required when filling;
3. Select the type of engine and mark if the machine has been in operation for more than 5 years
4. Click "calculate".

Please note that the results of the calculator for calculating the permissible engine oil consumption rate are a general case and for some engines (assumed by the specifics of the design) may be inaccurate and need to be adjusted.

Such a calculating calculator can be an indispensable assistant for calculating the consumption rate of lubricants intended for the operational accounting of the specific consumption of engine oil when justifying the need for them. After all, if not all, then many motorists are quite alarming about the consumption of oil in the engine. This service will show if you fit into the nominal values. If not, then you will have an objective reason to look for the causes and possible problems.

What's the bottom line

That is, if the engine is in order, then it practically does not take oil, and you will not need to top up until the next change. Its level will be within the permissible limits on the dipstick (within the min / max marks). But there are cases when the manufacturer indicates the consumption rates for a particular power unit (some), then its topping-up is considered natural and is not a malfunction, but on average it does not exceed 1-2 glasses from replacement to replacement.

It is important to understand that the harder the engine runs, the more oil burns in it. So, for example, the higher the number of revolutions, the more oil will remain in the cylinders of the car engine. Although one should not forget not only about the engine operating mode, but also about its design. And you should not neglect the tolerances of engine oils and fill in fuels and lubricants of dubious quality.

An internal combustion engine cannot run without lubrication. Moreover, it must be changed periodically. Ideally, the technical documentation contains data on the volume of oil in the engine, its specification, and the frequency of replacement.

While the car is under warranty, this is a problem for the service centers (excluding your costs for regulations). At the end of the warranty "bondage", many owners switch to self-service.

Basically, in order to choose the right amount of oil, you do not need to graduate from an automotive college. Nevertheless, this question confuses many drivers even at the stage of buying consumables. And the seller will be happy to hand you a couple of extra liters with the words: "it is better to overfill than to underfill."

How much oil should the engine have according to the standards?

The question is far from idle. Even if you are a “blonde in a red car”, arriving at an authorized service, it is advisable to know how much oil you need to fill in the engine. Scam managers can easily write you 8 liters, instead of the required 4, and you just pay for air.

And if you carry out the maintenance yourself, the more you need to own the information. At the same time, it is enough to get it once - the amount of oil in the engine will not change.
There are several ways to determine how much oil is required for a change in a particular engine:

If none of the above methods came up, it remains to measure the amount of mining.

Important! This method only works if the oil level was normal before changing.

After making sure that the level mark is not lower than the corresponding mark on the dipstick, substitute a container of at least 5 liters under the crankcase (for an engine with a volume of not more than 3.0 liters).

Drain all oil from the crankcase, unscrew the filter, and pour its contents into the same container. You will receive an approximate amount of lubricant (excluding the remaining on the inner walls of the engine).

After that, you need to purchase the required amount of consumables as soon as possible with a margin of 0.5 - 1.0 liters (you should still have a small margin for interservice refilling). While you are shopping, it is recommended to close the filler and drain ports, and in any case do not start the engine without lubrication.

What is the danger of overflow or underfilling

There are 2 marks on the dipstick: "min" and "max"


It is important to understand that these values \u200b\u200bare not related to the degree of warming up of the motor. (in contrast to the marks on the coolant expansion tank). The volume of engine oil in the engine is measured only "cold".

After the trip (when the engine warms up), the car is placed on a flat surface, and you must wait at least 15-20 minutes. The ideal option is to measure the level in the morning in the garage, before leaving. Then the motor will cool down and all the grease will drain to the bottom of the crankcase.

The dipstick is removed from the engine, wiped dry, reinserted, and removed again. The oil trail must be strictly between the marks.

Overflowing leads to the following problems:

• the oil touches the hot cylinder cavity, foams and burns out;
• oil scraper rings on pistons coke;
• seals and gaskets receive additional load (due to pressure), and fail ahead of time;
• oil enters the breather fitting, mixes with the dust, and creates a tight plug.

The excess will sooner or later squeeze out from under the gaskets, or simply burn out, leaving behind a layer of slag inside the motor. In this case, you pay for the extra volume.

Underfilling is no less dangerous:

• the oil intake pipe may "suck air", which will lead to oil starvation;
• the crankshaft will not receive a solid oil stain at the friction points, which will lead to the appearance of scoring;
• an insufficient amount of liquid reduces the degree of cooling of parts inside the crankcase.

What will happen to the engine if the oil is not added to the required volume - video

Therefore, it is necessary not only to know how much oil should be poured into the engine, but also to constantly monitor its level.

Reasons for overspending oil

Among car owners, the question is often asked: how much oil is needed for topping up between replacements? There is no definite answer to this question. The instructions for the maintenance of some cars come across information that the so-called. oil consumption "for waste" is admissible, indicating the quantity.

Practice shows that a serviceable engine consumes an amount that does not exceed the remaining oil when changing (provided that you knew how much to pour and bought the exact volume).


When the waste is drained, about 10% of the amount remains, this is how much oil will remain in the container.
And if the motor is worn out, the overrun occurs for the following reasons:

• the oil scraper rings are stuck or require replacement due to wear;
• valve seals (valve stem seals) are hardened or worn out;
• the tightness of the cylinder head gasket is broken, grease enters the coolant;
• there are leaks through the pan gasket or oil seals.

How many liters of oil to buy for filling into the engine - video

Conclusion:
Having received information on how many liters of oil to pour into the engine, you will not fall for the deception of a car service, and you will not overpay extra money when you replace it yourself. The engine displacement is not directly related to the amount of lubricant.

There is some connection with the number of cylinders (a longer crankshaft, and therefore an increased crankcase capacity).
You can take the exact data on how much you need to fill in your model from the documentation, or by determining empirically. The methods are described in our material.

Situations often occur when the driver does not know how much oil to pour into the engine. After all, the size of the oil solution to be poured or the need for its complete replacement depends on many factors. This indicator is different for each engine.

How much oil needs to be poured into the engine

It is impossible to give an unambiguous answer to this question. Vehicles from different manufacturers and brands have their own lubrication system design. In addition to the crankcase, the oil liquid is in the pipeline, crankshaft, and other components. How many liters of oil to fill your own engine can be found in the owner's manual. This is important when you need to fill in the grease for the first time. The manufacturer indicates the proper refueling indicator if the power unit is hollow, only assembled.

After draining the oil solution from the system, some of it remains not drained. This is 300-500 grams of grease. Determine how many liters of oil to fill in a car engine is possible following the recommendations developed for this. Engines of domestic cars with a volume of 1.8 to 2.4 liters can enter from 3.5 to 4.0 liters of oil. The same imported power units will include from 4.0 to 4.3 liters of lubricant. To determine how much oil is charged in the engine, you need to use the dipstick and perform several steps:

1. Initially, 3.5-3.8 liters of grease must be poured into the filler neck.
2. Wait 2-3 minutes and check the lubricant level with a dipstick.
3. If the value is insufficient, add 100-200 grams and check the filling level again.

The procedure must be repeated until the desired refueling indicator is reached. When pouring grease, remember that it is better to add a little than to get it right away. Pumping the lubricant back out of the system is very problematic. If too much grease enters, it will flood the engine parts and units near it. This will cause oil foaming and heavy operation of the power unit. If the filling indicator is less than the norm, rubbing nodes and parts will quickly wear out.

The required indicator of lubricating grease can be summarized in a cheat sheet table.

The volume of the power plant, l	Engine oil volume, l
	Domestic units	Foreign units
1.6	3.3-4.0	3.5-4.2
1.8	3.6-4.1	3.8-4.3
2.0	3.9-4.4	4.0-4.5
2.2	4.0-5.5	4.2-5.6
2.5	4.0-5.7	4.2-5.8
3.0	4.5-7.5	4.6-7.7
4.0	7.0-8.5	7.2-8.7
4.4	7.5-9.5	7.7-9.7
5.5	8.0-10.0	8.2-10.2

To avoid doubts and find out exactly how much lubricant is for the vehicle, you can contact the specialists at the service station.

Determine the oil level - methods

To find out the amount of oil in a car engine, several requirements must be met. They are mandatory:

• the car must be installed on a level surface;
• the power unit must be cooled down. If the check is carried out after stopping the vehicle, then you must wait 15-20 minutes. During this time, the temperature of the starting unit will decrease, the pressure in the lubrication system will drop, and the oil solution will drain into the crankcase;
• measurement of the lubricant level must be done with a standard dipstick.

On the surface of the probe, the marks are filled: min and max. They indicate the minimum and maximum permissible oil filling volume in a car engine. The process for determining the lubricant level consists of the following points:

1. The dipstick must be removed from its original place and the remaining grease must be wiped off with a clean cloth.
2. Install the dipstick in its original place.
3. Remove the gauge again and inspect the oil layer. It should be located between the min and max marks.
4. If the lubricant layer is below the minimum mark, then an oil solution must be added to the lubrication system.
5. If the grease level is above the maximum mark, it is necessary to drain excess grease from the system.

At the present time, almost all cars are equipped with computer systems for warning the presence of an oil solution and its consumption. It is not recommended to completely trust computer data. Sometimes, especially before and after a long trip, you need to check the level of lubrication in the power plant yourself.

Replacement intervals

The mileage is determined in the service book for the vehicle, after which the lubricant solution is replaced. In the absence of a strenuous mode of operation, driving on a highway outside the city, the mileage between lubrication changes can be up to 15,000 km. The operation of transport in city traffic will reduce the mileage to 9000-11000 km. But even these data are not completely accurate, since the state of the lubricant is influenced by some factors, which include:

1. Type and quality condition of the fuel to be filled.
2. The volume of the power plant.
3. The type of lubricant that was previously filled and its condition.
4. Engine running hours.
5. Technical condition of the vehicle.
6. Vehicle operating conditions and operating modes of the power plant.

These factors can change the quality of the lubricant. The loss of its characteristics by the lubricant will lead to rapid wear of the power plant. In such a situation, an analysis of the oil solution carried out under laboratory conditions can give an accurate answer about the quality of the lubricant and the need to replace it.

Engine oil mileage

The need to replace the oil solution in the engine can be calculated without consulting laboratory specialists. For this, it is fashionable to use two calculation methods: by engine hours and by fuel consumption.

The need for replacement by engine hours

The initial data is the stable average speed of the vehicle in the city, the manufacturer's recommendations for changing the lubricant. Let's say the speed in the city is 40 km / h, and the plant's recommendations for replacing are 15,000 km.

To calculate the engine hours, the distance must be divided by the speed limit. In this situation, 15000/40 \u003d 375 m3 / h. The resulting value means that after 375 operating hours of the power plant, it is necessary to change the oil.

The international standard API has developed a summary table of oil change, depending on their type and operating time.

Let us assume that an SL / SM oil solution with a working resource of 330 hours has been filled into the vehicle engine. To determine the mileage, you need to multiply 330 m / h by an average traffic of 40 km / h. As a result, we get 13,200 km mileage until the next grease change.

The need to replace the fuel consumption

The initial data should be fuel consumption per 100 km of movement according to passport data and actual. For example, according to the passport, the consumption is 9 liters per 100 km, and the actual consumption is 11 liters. According to the passport, the oil change should be carried out after 15,000 km of vehicle movement.

The calculation of fuel consumption is carried out by the proportional method for passport and actual data separately. For passport data: 15000x9 / 100 \u003d 1350 liters. For actual data: 15000x11 / 100 \u003d 1650 liters.

The real distance through which it is necessary to fill in new oil is calculated with a similar proportion: 1350x15000 / 1650 \u003d 12,270 km.

Each of the methods can be used for any vehicle. It is only necessary to record the data at the time of pouring grease into the motor.

Let's sum up

In order to determine how much oil needs to be poured into a car engine, several recommendations must be followed:

1. Choose a vehicle oil that will be constant throughout the entire operation. The lubricant should be selected taking into account the operating conditions of the vehicle.
2. If the vehicle is actively operated, check the degree of oil filling with a dipstick at least once every 3-4 days.
3. Observe the grease change interval.
4. Fill the engine with grease in accordance with the technology. Do not overfill or underfill solution.
5. If you have no experience, knowledge or doubts, contact a service station that has the necessary equipment. Specialists will carry out the necessary work on the engine, regardless of whether it is diesel or gasoline.