An automatic transmission is a useful thing. The technology of building automatic transmissions and producing lubricants for them has reached such a level that you can not think about changing the oil in the automatic for 4-5 years. That's if we buy a new car. If we have a car with a mileage, we have to face the problem of choosing a fluid and the method of its replacement. Both problems cause a lot of questions and we will look for answers right now.
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