Why Change Oil in the Car Engine

According to the professional mechanic of the best doorstep car repair app, oil change "by mileage" will almost be suboptimal. The same mileage on the highway and in urban surroundings is more than fourfold in engine hours and a massive difference in oil degradation. For instance, with a regular replacement interval of 15 thousand kilometres, the oil will work for all 700 hours in traffic jams and even less than 200 hours on the highway. 

For the quality of engine oil operation, this more than threefold difference is colossal since even while operating at a low load, the thermal effect on the oil is very significant. In modern car engines, the situation is aggravated by high-temperature control, poor ventilation of the crankcase and the lack of cooling on a car standing in jams. Also, it causes a sharp decrease in its resources. 

The load on the track can also have a significant impact. At speeds up to 100-130 kilometres per hour,  most cars have less than average engine load, low temperatures, and working crankcase ventilation. In heavy-duty engines, the load is significantly minimal, which suggests that the load on the oil is very weak.

As the load on the engine increases at higher speeds, so does the load on the oil. On smaller engines with a "short" transmission, both the engine and the oil can have a very hard time. More robust motors will increase the load more smoothly.

With the increase in the engine's load, the operating conditions of the oil also deteriorate, the temperature of the pistons rises, and the flow of destructive crankcase begins to increase. In such cases, the optimal operating mode for both the engine oil and the engine is an average speed of half of the maximum speed and a short idling time after warming up.

While calculating engine hours, it turns out that a typical oil change interval of 15 thousand kilometres in engine hours is from 200 to 700, depending on the driving style. 

Cases related to obvious excess while using standard semi-synthetic oils and synthesis on a hydrocracking basis are fraught with "complications" for the engine in the form of coking and a decrease in the mobility of piston rings.

Surprisingly, 400 hours at typical city speeds of 20-25 km / h is exactly the same 8-10 thousand kilometres on one portion of engine oil. Moreover, 400 hours at a speed of 80 km / h is already a seemingly unrealistic 32 thousand kilometres, although it is hardly worth striving for such an indicator.

Obviously, some car owners can boast that we operate cars in the urban environment at a constant speed. So what if the runs are mostly in an urban environment, and the motor is also boosted? 

However, the replacement of engine oil using car service at home not only depends on the driving style. It is also of no small importance what sort of oil is poured into the engine.

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