Is it allowed to mix motor oils 3.09/5 (61.80%) 1309 votes
Is it possible to mix motor oils from different manufacturers ? There is a lot of controversy and opinions on this matter. Some people think that all motor oils are the same. Therefore, they fill the engine with whatever is cheaper in the store. There is another myth that different viscosities and different chemical additives already indicate that motor oils are all different, and it is absolutely forbidden to mix them. Let's look into this issue.
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