Look behind the scenes at the extensive testing involved for modern engine oils. Today’s best oils will have API SP, ILSAC GF ...

Though a small amount of extra oil added to your engine shouldn't affect it, if you overfill it, that can turn into bad news.

Looking for affordable motor oil that won’t let you down? Here are 3 cheap motor oils that deliver solid performance without ...

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Healthy engine oil should be light brown, so if yours is black, you may be wondering if it's time for an oil change. Here's ...