What is the resource of the engine: foreign cars and domestic cars

Usually, question, what is the resource of the engine of a car, asked by drivers, who plan to buy a car on the secondary market. In other words, this topic worries buyers of used cars more. It is quite logical, that after buying a used car, not everyone wants to spend on engine overhaul 30-50 thousand. km. mileage.

For this reason, it is desirable to know, how much on average this or that engine is capable to leave, that is, when the unit needs to be repaired taking into account the features and practical operation. In this article we will talk about that, what resource is laid by manufacturers of modern internal combustion engines, as well as how much such engines are obtained from the average driver.

Average service life of modern motors

Let's start with that, that still remains to be heard information about the super-reliable engines of old foreign cars, for which with proper maintenance and care a very real figure before the overhaul was a mark of one million kilometers.

Given a number of changes in world politics, globalization of production and constant strengthening of environmental standards, large foreign car manufacturers no longer seek to develop and equip their cars with such reliable engines (millionaires and even half a millionaires).

The reason is simple - to "wind" such a solid mileage, the average driver with an annual mileage of about 30 thousand. km. you will need to drive at least one car 15 years, to pass 500 000 km. During this time, the car is hopelessly obsolete in terms of equipment and safety, the power unit will no longer fit into current environmental standards, etc.. P.

If for some reason the owner does not part with the car and continues to operate it, then the source of additional income is the sale of spare parts. In other words, reduce the life of motors and other components is also profitable in economic terms.

Given this information, it becomes clear, that for most modern foreign cars the average figure of the internal combustion engine resource can be considered close 300-350 thousand. km. As for the domestic car industry, the figure is close 150-200 thousand. km.

It is important to understand, that the resource of the engine is also greatly influenced by a number of individual conditions. In some cases, the power unit can easily pass and 500-600 thousand, whereas in others overhaul must be done through 100 thousand.

In other words, engine life can be considered a relative value. Every driver has his own style of driving, some load and spin the engine, others ride in the middle range. Someone consciously approaches the choice of oil and gets the best engine oil, and also shortens its replacement intervals.

At the same time other owners prefer to pour the cheapest oil, changing the oil even later than the interval specified by the regulations. It becomes clear, that the resource of the power unit strongly depends not only on quality of manufacturing of the motor, but also from the driver himself.

It is also important to understand, that the modern engine has become more powerful and at the same time more economical than its predecessors. This means, that the power unit is forced in all available ways (turbocharged, change of phases of gas distribution, etc.. P. while the working volume does not increase.

Recently, motors have become much more agile, technological and complex, increased compression ratio, the temperature of the thermostat was raised, engines began to run on ultra-depleted mixtures (example, GDI motors) in order to maximize fuel savings, etc.. P.

At the same time, the weight of the power unit decreased, stronger materials (example, cast iron) gave way to lightweight aluminum alloys, special coatings are applied to the steel surface (Nikasil, Alyusil et al. d).

In other words, today the maximum of power and torque is removed from the small volume unit. Quite obviously, that such an internal combustion engine is constantly experiencing heavy loads, and even in regular modes. If you compare the new generation engines with the old engines with a large displacement, predecessors consumed more fuel, however, they were less heat and mechanically loaded, time-tested durable materials were used in their construction, which provided an increased resource.

Although today the technology of production of parts and the accuracy of manufacture and assembly have taken a step forward, general world trends still pushed car manufacturers to produce so-called "disposable" motors, which must serve the stated warranty period (100-150 thousand. km. mileage), after which to pass a segment, which just rests on the middle mark close 300 thousand.