What oil consumption is considered normal. Consumption rate of lubricants and special liquids How to calculate oil consumption by 100 km

It is known that engine oil belongs to consumables. But many of them perceive it as the need for periodic replacement for regulatory deadlines, forgetting that there is a natural consumption as a result of incineration of some of its number when the power unit is operating. In the normal state, this consumption is small, so many car owners simply do not notice it. But even if the lubricant level has noticeably decreased, which is determined by the points on the dipstick, it does not always signal that the presence of any faults. It is enough just to add the desired amount and continue to exploit the car. But if the level reduction occurs often, it is worth thinking about using computer diagnostics Find out the reason for this phenomenon and eliminate it. Of course, the level of motor oil is affected by many factors - the type of motor, its volume, car age or its real mileage, and even the style of driving the owner of the car. Therefore, it is so important to know the exact costs of the consumption and be able to determine why these indicators are increasing over time.

Boundary oil consumption rates with different engines.

Normal consumption mm

Accurate answer to the question, what oil consumption in the engine should be considered normal, it is impossible to give it, since this indicator may vary greatly depending on the most different factors. We only note that the combustion of oil in the CPG is a natural process, to avoid which, unfortunately, is impossible. Since the lubricant is supplied to the walls of cylinders operating in extreme temperature conditions, its evaporation and partial combustion is inevitable. A certain amount of mm remains on the walls of the cylinders due to not absolutely dense adherence piston rings, so this lubricant enters the combustion chamber, flamming with the fuel and air mixture. If we give very common and approximate figures, then in modern power units, the manufacturer declared by the manufacturer is 0.1-0.3% of the total fuel consumption used to overcome the definite distance. For example, we give a car consigning 10 l / 100 km. Fuel. Every 100 kilometers it will lose about 10-30 grams of oil.

If, when running 10 thousand km, the flow rate exceeds 3 liters - this is the reason to think about why your car has become so voracious. However, in many cases, this is a completely natural process - the result of wear of rubbing parts and increasing the gaps with a decrease in their ability to keep the finest oil film. Note that during running vehicle (or when installing a new power aggregate, as well as after replacing the piston group), oil consumption increases an average to one liter per thousand km. Depending on the operating conditions of the oil consumption rate of 1000 km. When running the car, 10-150 thousand km will be as follows:

• with moderate driving mode - 0.25 l.;
• when driving with an increased load - 0.4 l.;
• if the car is operated in the mountainous area - 0.5 l.;
• if the power unit has a mileage exceeding 150 thousand km. - 0.3-0.55 l.

And yet the generally accepted is considered to bring the regulatory indicators depending on the type of motor.

Consumption rates for classic atmospheric engines

Currently, the share of gasoline atmospheric force aggregates among the entire mass of the internal combustion system remains the prevailing. For motors with a relatively small resource of operation, the generally accepted rate of consumption is about 0.005-0.025% for every 100 liters. In other words, subject to the fuel consumption indicator within the norm, your car will "eat" 5.0-25.0 grams per thousand km of mileage. For worn engines, this indicator grows up to 0.025-0.1%, or incineration of 25-100 grams MM every 1000 kilometers. If you are operating a car in heavy or extreme conditions, be morally ready for the fact that after the departure of each thousand kilometers you will have to top up from 400 to 650 grams of lubricant.

Consumption rate for turbocharged units

Forced gasoline power units differ from increased fuel consumption, so even for the new auto, the norm of the motor oil flow rate will be about 80 grams per born 100 liters of fuel. The modern market offers an increasing number of cars equipped with such power units, while the number of turbines can vary from one to three. Possessing much more power with comparable or even smaller sizes, such motors are considered to be the most demanding both to fuel consumption and to spends lubricants. This is quite explained because the turbines themselves need lubricant and are an important source of his losses. And if there are several turbines, then the cost of oil will be even big. The allowable oil consumption on the forced engine is highly dependent on driving style, and from the motor resource, therefore, the specific indicators are difficult here.

MM consumption on diesel engines

The energy consumption rate on a volunteer on a new diesel power unit is comparable with the flow rate for turbocharged gasoline engines and is about 0.3-0.55 grams for every 100 liters of fuel. A critical mark indicating that you should refer to specialists is to exude a motor oil consumption rate in the engine of the indicator in two or more liters per thousand km of mileage.

Causes of increased flow rate mm

A noticeable increase in the motorcycle consumption, as already noted, the phenomenon is natural, but several may be the causes of such a situation. Let us try to figure out what exactly the greatest impact on the degree of increase in the flow of lubricant material and is it possible (and how justified it) to deal with it. In most cases, oil is spent more norms due to overheating of rubbing parts (evaporation) or as a result of increasing technological gaps (leakage). Some problems indicate simply about wear, which is noncritical to the engine, and its elimination requires expensive overhaul. Other reasons may indicate the presence of very serious problems, without the urgent elimination of which the engine may soon fail.

Perhaps Samoa frequent cause MM leakage is the violation of the integrity of the gasket of the BC. Such a situation usually arise or as a result incorrect trap bolts, or due to overheating of the motor. The method of diagnosing the problem is quite simple - visual inspection of the power unit. On the presence of damage to the gasket will be evidenced by the height of oils present in the area of \u200b\u200bthe gasket. According to statistics, aluminum motors are often sinned with this malfunction. When traces of mm on the engine, the problem should be eliminated. It is possible that for this it is enough to pull insufficiently clamped bolts, but more often the cause lies in the curvature of the surface of the head of the BC. In this case, it is subject to alignment, and the gasket is replaced.

Crankshaft

The second common cause of the growth of motor oil flows is leasing fluid through the glands. This will indicate elevations of mm under the power unit. The cause of the occurrence of leaks is the wear of the edges of the sealing elements. This result can lead:

• the use of low-quality glands;
• application of oils that are not recommended by the automaker;
• long exploitation of lubricant (exceeding the regulations of the replacement).

Most often occurs the second reason, especially for outdated car models. The problem is relatively easily eliminated by replacing the flowing glands.

Oilfilter

Poorly screwed oil filter - an infrequent reason for the leakage of lubricating fluid, most often manifested with self-replacement of this consumables inexperienced car owners. Usually, to ensure the required tightness, the sealing ring is lubricated with a small amount of mm. Newbies This nuance is not taken into account, and when the oil filter is wrapped in an insufficient effort, which leads to leaks. If the problem cannot be eliminated, the oil filter is better to change the new one.

Valve

Leather oil caps, working in high temperature mode, is also considered to be natural, because over time, the rubber loses its elastic characteristics, and the caps are no longer able to provide complete tightness. In such cases, the leakage of the lubricating fluid can occur both in the release and in the inlet stage. Inside the valves, a layer consisting of oil sediments and a fuel oil is formed, significantly worsening the motorcycle motor. To solve the problem, a replacement of caps belonging to consumables.

Oil-oil rings are a common cause of an increase in the flow of oil, which, falling into the cylinder, is mixed with the fuel and air mixture and burns. To detect this problem is quite simple - the color of the exhaust acquires a pronounced shade. Rings are made of material with a specific indicator of elasticity. If the engine is often overheated, that is, it works in high-power modes, the elasticity is reduced. The temperature of the order of 185-200 ° C is considered critical, however, this indicator is individual and depends on the quality of the manufacture of oilseed rings. The easily diagnosed loss of elasticity is a sign of the need to replace the rings, which sometimes lose their consumer properties due to the occurrence of flutes - the effect in which the rings are spontaneously included in resonant oscillations.

The coking of the rings is another factor leading to an increase in lubrication consumption. The adhesion of them to the piston causes the loss by the ring of the sealing function, as a result of which the engine compression drops noticeably, accompanied by increased MM spending. As a rule, coking occurs or as a result of using inappropriate oil, or due to natural wear. For cleaning the rings are used special compositionsAnd if they do not help - they will have to be replaced with new ones. In old engines to an increase in the flow rate of mm, the destruction of the piston jumpers can also lead. These are age-related changes that require the replacement of the piston itself.

Cylinders

The oil flow rate depends on the state of the walls of the cylinders. Due to the increased wear of the ring seals, the excess lubricant penetrate into the TsPN, which leads to an increase in Ugar MM. Wear can be triggered both by the aging of the parts of the power unit and the appearance on the surface of the cylinders of various defects in the form of scratches. Gradually, lubricating fluid accumulates in them, leading to the formation of seals that impede the movement of the pistons. In the end, due to overheating (for example, due to the location of the water channels of the cooling system), the cylinder may simply be swore. In such cases, instead of a round, its diameter takes the form of an oval, because of which sealing rings are no longer able to provide the required tightness, preventing leakage technical fluids, including engine oil.

One way to solve the problem is the use of rings with less rigidity. However, soft sealing rings with spring expansion have high sensitivity to extreme temperatures, which is undesirable for the car cooling system. In any case, it is possible to compensate for the change in the shape of cylinders only by boring, which is quite expensive, or using the rings with a changed geometry, as adapted to the changed form of cylinders. Later, the ignition is also among the reasons for increasing the lubrication consumption, but it is easily eliminated - it is enough to contact any hundred. If there is an appropriate experience, the ignition system adjusts the ignition system itself, and the good is a fairly simple procedure.

Increasing the power of the power unit of the car using the turbine becomes an increasingly popular option, however, it should always be remembered that this is a stick about two ends. The turbocharger is a detail that requires intense lubricant, without which it will quickly fail. This means that the forced engines "eat" oil with a much greater appetite than their atmospheric relatives. It is impossible to avoid this kind of problems. At the same time, some turbocharged motors consume up to 200 grams of engine oil for every hundred kilometers, which is definitely a lot. Take two liters every thousand kilometers - the pleasure is not from cheap, but, as they say, no victims do not do. In other matters, most of the forced power units are characterized by the cost lubricant, an order of magnitude less than the specified value, that is, everything is individually.

Often even experienced motorists use an increased viscosity oil, which, on the one hand, improves the Lubrication of the CPG, facilitating the formation of the oil film of greater thickness. This contributes to the increase in the resource of many engine nodes. But, on the other hand, such a step becomes the reason for increasing losses of mm. Explanation of this simple - the larger the area of \u200b\u200bcontact of the liquid with rubbing surfaces, the greater the lubricant fill indicator. That is, choosing oil with an improved viscosity rate, you must solve an important dilemma - spend more money on topping the oil or refuse to increase the aggregate resource of the power unit. Especially difficult will be the choice for owners of used cars, which are already eating a lot of technical fluids at a resource that already "breathes on incense."

Another thing is to use low-quality oil. It is bought in the hope to save, because the products of noname-producers are at times cheaper. Although the viscosity of such a lubricant usually corresponds to the specified nominal value, many of its important characteristics Conducted by adding additives. Brand oils are the most modern high-tech additives that contribute to losses due to the evaporation of oil. In deceive analogues, such additives are absent, which automatically leads to an increase in the flow of lubricating fluid. Therefore, such savings is hardly justified at least from the point of view of the cost of topping MM, not to mention the harm that is applied to the nodes of the force aggregate.

Operating conditions

It is impossible not to mention that the prevailing operational regime can also have a significant impact on the norms of consumption of technical fluids. If the engine often works in high load mode, increased flow Motor oil is inevitable. If you are a supporter of aggressive driving style and prefer sharp start And movement at maximum speed, if you live in the mountainous area - be prepared for the fact that the lubricant will be added much more often. On the contrary, riding an average pace reduces the consumption of both fuel and oil, because in this case temperature mode More gentle and loss from ugar are minimal. So if you have to far Ride In the high-speed highway, be sure to grab a canister with an oil to the top of the topwork, even if before that you did not notice the increased flow.

Summing up, it is possible to conditionally divide the causes of increased spending of lubricating fluid into two categories: those that are inevitable due to natural wear, and those that arise due to the use of inappropriate consumables and materials. In the latter case, it makes sense to compare the costs of purchasing cheaper oil with spending on its frequent plot. If the consumption is associated with the natural wear of the CPG details, it is better to be spent on topping a few extra liters of lubricating fluid every 10,000 kilometers than producing motor overhaul.

Motor oil consumption Depends on the amount that burns in the engine. It can speak either about its poor quality (the lubricant then excessively burns out), or on the engine malfunction (leakage occurs, most often through the valve glands and oil-chained rings). Everything will depend on specific numbers and additional symptoms that can manifest themselves when the lubricating fluid is fused.

How the oil consumption is calculated in the engine

To determine the norm, the magnitude of the mileage is taken into account, namely the flow rate of the fuel resource. Such an indicator is more accurate than the distance traveled, because when you are standing in traffic jams, the oil is even more depleted, and the odometer does not change its value.

The oil consumption in the engine is customary to count on its volume spent on incineration of 100 liters of fuel.

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

Calculated oil consumption formulas

Common the actual oil consumption on the ugar per cycle of its work (from replacement to replacement) can be calculated by the formula:

Qy \u003d σq + (qz-ql),

Where σq is the oil, valued during the cycle (between that); Qz - filled with refueling; QCL is merged when replacing.

And here consumption of flooded oil in liters per 100 liters of fuel Determine:

MZ \u003d V / (P * K),

Where V is the capacity of the engine lubrication system; P - consumable fuel K - coefficient taking into account the wear of the piston group (K - for diesel car 1.25; gasoline 1,15; Turbo 1,3).

Oil consumption rates increase to 20% for cars after overhaul and operating more than 5 years.

Motor oil consumption rate on avgar

For passenger house Vehicles by a normal ugar indicator is the consumption of 0.005 - 0.025% per 100 liters of fuel, which is approximately 5 to 25 grams of oil per 1 thousand km. In the worn engine can be achieved up to 0.1% and 100 grams. per 1000 km respectively. Well, and if the car works at the limit or has a turbocharged or diesel unit, then such a rule will be even more.

For freight Long-term oil flow rate of 0.3 - 0.4% of fuel consumption. The calculated formula uses the amount of bedrid fuel and a valued oil during this period. But this calculation of the oil consumption, alleged Scania automaker, is relevant only for heavy cars with large Engine. Calculations of the consumption of lubricant liquid in passenger cars, both with diesel and gasoline engineshas a slightly different look.

Motor oil consumption rate by 100 liters. Fuel for passenger cars

For carburetor cars VAZ norm, consumption is considered from 0.3 to 0.4 liters. 100l fuel.

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

Keep in mind that massel consumption standards significantly increase for cars after major repairs and operating more than five years.

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

Oil flow rate method

Oil level on Schu

The definition of the actual value of the proportion of motor oil on the avgar is carried out by mileage 200-300 km. The car during the control arrival must be technically correct. The oil level in the crankcase should be between the "MAX" and "MIN" labels of the engine. Before the control mileage, heat the engine, the oil temperature should be 80-85 ° C. Drain oil produced on a flat site. From the pallet it should be flushing for 15 minutes. For the accuracy of the result, it is desirable to define not the volume, namely the weight as the amount of lubrication remaining in the filter can only be considered to weighing it.

How to use the calculator

One of the main roles in this calculation plays the volume of combustion fuel and the volume of the working oil, as well as the type of engine. It is precisely regarding this volume and the specifics of the work carried out a specific oil consumption.

To calculate the specific oil consumption in the engine, such data is required:

1. In the field "Fuel" - enter average flow Fuel in liters, 1`000 km. mileage (default and based on the calculated formulas are 100 liters);
2. In the field "Oil" - the volume of oil that is regulated by the manufacturer as necessary when pouring;
3. Select the engine type and check if the machine is operated for more than 5 years
4. Click "Calculate".

Note that the results, calculator calculating the allowed motor oil flow rate, are a common case for some engines (alleged specific design) may be inaccurate, and need to be adjusted.

Such a calculated calculator may be an indispensable assistant to calculate the rate of consumption of lubricants intended for the operational accounting of the specific consumption of motor oil in justifying the need for them. After all, if not all, then many motorists are quite alarming relate to oil consumption in the engine. This service will show whether you are placed in nominal values. If not, then you will have an objective reason to look for causes and possible malfunctions.

What is the result

That is, if the engine is in order, it almost does not take oil, and you will not need to top up until the next replacement. Its level will be in permissible boundaries on the measuring probe (within the Ming / Max marks.). But there are cases when the manufacturer indicates the costs of consumption for a particular power unit (some), then its topping is considered natural and is not a malfunction, but it does not exceed 1-2 glasses from replacement before replacement.

It is important to understand that the engine is working intensively, the more oil burns in it. So, for example, the greater the number of revolutions, the more the oil will remain in the engine cylinders of the car. Although you should not forget not only about the mode of operation of the engine, but also its design. And should not neglect tolerances motor oils and fill fuel and lubricants dubious quality.

The rate of consumption of lubricants are installed on 100 liters of total fuel consumption calculated on the standards for this car. Consumption rates of oils are installed in liters per 100 liter of fuel consumption, lubrication consumption rates - respectively in kilograms per 100 liter of fuel consumption.

Consumption rates of oil and lubricants are reduced by 50% for all cars in operation up to three years.

Oil consumption rates increase to 20% for cars in operation for more than eight years.

Consumption of lubricants when overhaul Car units are installed in an amount equal to one filling tank Lubrication systems of this unit.

Consumption of brake and cooling liquids is determined in quantities of refueling for one automobile transport.

Individual standards of consumption oils in liters (lubricants in kg) per 100 l of total fuel consumption by car

Table VII-9

For cars and their modifications, on which there are no individual standards of consumption of oils and lubricants, temporary rates of oil consumption and lubricants are installed. So for off-road car dump trucks operating on diesel fuel, the following temporary standards are established:

Temporary oil consumption rates in liters (lubricants in kg) per 100 liters of total fuel consumption for off-road car

Table VII-10

Section.2. Methods for calculating operational consumption diesel fuel

Currently consumers buy new models career dump trucksFor which diesel fuel consumption norms are not defined, therefore, there are a number of techniques that allow you to calculate the costs of expenses in relation to specific operating conditions. In this section, two techniques are given: the calculated method for determining the operational consumption of diesel fuel by the career dump truck (Methodology of Professor A.A. Kuleshov) and the calculated method for determining the operational consumption of diesel fuel by career dump trucks (Methods BELAZ).

Estimated method for determining the operational flow of diesel fuel by a career dump truck

The studies conducted at the St. Petersburg Mountain Institute made it possible to establish multi-factor fuel consumption by career dump trucks from mining and technical and other conditions that allow sufficient accuracy to determine fuel consumption for specific operating conditions, according to the following procedure (Methodology of Professor Kuleshova A.A.).

· Determine the specific fuel consumption by dump truck per unit of transport work, i.e. 1 tkm (l / km).

Based on the ratio of the hourly fuel consumption and hourly productivity of the dump truck, the formula was derived to determine the specific fuel consumption per unit of transport operation (l / m. Km) when moving the loaded dump truck horizontally and lifting vertically.

where - the specific fuel consumption of the dump truck at rated power (determined by the engine characteristic), g / kW. h.

The density of diesel fuel at a temperature of 20 ° C (g / cm 3) is taken 0.83 g / cm 3.

The efficiency of the dump trussia is accepted for two-axis dump trucks - 0.85.

· Determine fuel consumption (l / 100 km) when moving the loaded dump truck horizontally.

where 100 - means 100 km of run; - coefficient of rolling resistance; - coefficient of tare dump truck; - load capacity of the dump truck, t.

· Determine fuel consumption (l / 100 km) when moving the loaded dump truck vertically.

where is the height of the movement of the loaded dump truck vertically, m.

· Determine the total fuel consumption (l / 100 km) when moving the loaded dump truck on the rise (horizontally and vertical).

, l / 100 km;

· Determine the overall (operational) fuel consumption by dump truck

We determine by adding to the resulting value another 20 - 25% on the movement of the empty dump truck, as well as loading-unloading of the dump truck.

, l / 100 km.

It should be borne in mind that in the case of the definition of a total (operational) fuel consumption for a dump truck with a used engine in operation and having a wear, the value of the fuel consumption of the engine should be taken with amendment to the mentioned wear (can't take the factory characteristic for the new engine).

· Based on the resulting general (operational) flow rate of diesel fuel (l / 100 km), if necessary, the hourly consumption of fuel by a dump truck according to the following procedure:

a) Determine the electrical power of the engine for the dump truck (kW / t).

where is the rated power of the dump truck, kW; - full mass Dump truck with cargo, t.

b) Determine the average longitudinal bias of the road on the highway of the dump truck movement (%).

c) According to the accompanying graph of the dependence of the speed of the velocity of the dump trucks from the specific power and the slopes of roads (Figure VII-1), determine the maximum speed of movement of the loaded dump truck on the track (km / h).

For the range of operating conditions that do not cover the attached schedule, the maximum speed of the dump truck on the rise is determined by the formula:

, km / h

where - the electrical power of the engine for the loaded dump truck, kW / t; - coefficient of rolling resistance; - longitudinal corner of the road,%.

Figure VII-1. The speed of movement of the career dump trucks on different rises of roads depending on the power specific power

(d) Determine the maximum speed of movement of the empty dump truck on the quarry descent, based on the specific conditions (limitations of speed under the safety conditions of the movement due to the insufficient width of the roads, the presence of steep turns, limited visibility, etc.).

e) Determine the average maximum speed of the dump truck in one working cycle.

, km / h

where and is the maximum speed of the properly loaded and empty dump truck on the rises of the career road, km / h;

f) Determine the average time for which the dump truck will be 100 km away.

Taking into account the fact that besides the time of movement with maximum speed, working time The engine includes time for loading - unloading dump truck, overclocking and braking, and on passing with a low rate of dangerous areas. Statistics show that this time consumption is, approximately 50% of the time of movement at the maximum speed; The total time is accepted as an increase of 1.5 times the time of movement at maximum speed.

, C.

g) Determine the average hour fuel consumption by dump truck

Question from the reader:

« Hello. Please tell me what normal oil consumption for not a new engine. A foreign car mileage about 180,000 kilometers. Through every thousand add almost 300 grams! Does it seem to me not normally? Thanks in advance for the answer»

To be honest, I already talked a little about the flow rate of the oil. But today I want to talk about a normal amount. Engine internal combustionWhatever he was perfect, still a little spending oil - so what is the normal value ...... ..

Conditionally, I want to divide the engines: - It is an ordinary gasoline, turbocharged gasoline and diesel, as a rule, they are also turbocharged.

One golden Rule – normal fuel consumption is considered not by car, but by fuel consumption. That is, 100 or 1000 spent liters. Typically, a value is equal to 100 liters.

Normal gasoline engine

For new gasoline engines - Normal oil consumption is considered to be 0.005 - 0.025% per 100 liters. That is, with an average mileage of 1000 kilometers, normal oil consumption will be 5 - 25 grams.

For normally worn engines - normal oil consumption is 0.025 - 0.1%, that is, 1000 km will need to fill 25 - 100 grams of engine oil.

For worn engines on the verge of repair - oil consumption 0.4 - 0.6% per 100 liters of fuel. This is 400 - 600 grams per 100 liters. Critical mark of 0.8% - 800 grams of oil per 100 liters.

In turbocharged engines, the normal oil consumption is slightly higher than that of ordinary atmospheric.

For a new engine - normal consumption may well be 80 grams per 100 liters. That is, 1000 kilometers add 80 grams, 10,000 km - about 800 grams already

For worn turbocharged engines - here the guys can reach two liters. And if the turbine is faulty, then the flow can be even more. Therefore, if your car spends more than two liters, then you need to be diagnosed and necessary to repair.

Consumption diesel engine Practically coincides with the turbocharged engine. Normal flow Oils - about 300 - 500 grams of oil per 10,000 kilometers. If the flow exceeds 2 liters, then you need to go to the service.

That's all. Your 300 grams per 1000 kilometers are definitely a lot, go to the car service while.

In the section on the question where to find norms and what frequency to replace Tosol? Posted by the author Iaisia \u200b\u200bLukanina The best answer is to reduce the risk of engine overheating to a minimum, you need to carefully monitor the health of all elements of the cooling system, to carry out prevention and technical inspection, maintain the required level of coolant and eliminate its leaks in a timely manner. With frequency once every two years or every 50 thousand km of mileage should be replaced by Tosol. When replacing Tosola, it is desirable to clean the cooling system from rust, scale and other contaminants using special detergents.

Answer from Јorela[guru]
The main thing ... so that not left left !! !
Before the period .. Check ... Well, everything, in principle, depends on the mechanic or drivers! !
They are something ... straight ... as columns !!!

Answer from Yuriy.[newcomer]
Try the instruction manual or service book, try to read, there everyone should be written there.

Answer from Eternal student 2007.[master]
there are recommendations for manufacturers - replacement every 3 years. I think the cargo is also no more, because on average for 3 years, Tosol loses the bulk of its useful properties. .
on the page
find
application
to the disposal of the Ministry of Transport of Russia
from 14.03.2008 N am-23-p
GUIDELINES
Fuel and lubrication rate standards
On road transport

Answer from AVL[guru]
The norm of life is once every 3 years.

Answer from Alexey Baranov[guru]
Some antifreeze are withstanding 5 years of operation and 100-250 thousand km of mileage. The shelf life and the frequency of fluid replacement are usually indicated on the package. And yet, in the process of operation, the coolant gradually loses its properties: due to the triggering of additives and reduce alkalinity, aggressiveness increases to rubber and metals, foaming increases.