Changing engine oil is one of the most important procedures that every motorist should regularly carry out. In any case, if he is deeply interested in ensuring that his "swallow" continues to fly regularly on highways and roads. But when is it necessary to carry out this same oil change? Many drivers and technicians immediately nod at the figures from the regulations, forgetting one important detail.
Many dealers, motorists and even mechanics for some reason forget that the manual contains not one oil change number according to the regulations, but actually two. The first digit is this regular engine oil change. The second digit is the oil change when the vehicle is operated in adverse conditions. In the vast majority of cases, people use only the first digit.
It is important to understand that the specific mileage at which engine oil should be changed is guaranteed to be different for different engines. However, in the case of "consumer" cars, the first digit in the manuals is most often somewhere in the range of 12-15 thousand kilometers. The second digit is most often just the first digit divided by two. If a regular oil change is done every 15 thousand kilometers, then an “emergency” one every 7.5 thousand km. There are exceptions, so the instruction manual for the car is still not a sin to read.
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So what is the problem? And the problem lies exactly in the fact that in Russia the operating conditions of most cars are either close or directly extreme. Starting the engine at temperatures of minus 20 degrees Celsius and below, short trips in winter, driving (even occasional) on dirt roads or off-road - all this from the point of view of engine manufacturers is already unfavorable operating conditions. This means you need to change your oil more often. They can not spoil not only porridge, but also the engine. In any case, if the oil is new and of a suitable brand. Thus, if the upper standard mileage threshold is 15 thousand km, then you can change the oil in domestic conditions already at 8-10 thousand mileage.
If you want to know even more interesting things, then you should read about what to do if water flows from the muffler, and how this threatens the "insides" of the car.
A source: https://novate.ru/blogs/301021/61076/