Motor oil has quietly become one of the most important choices car owners make, especially as vehicles routinely cross ...

Whether you drive a highly-strung sports car, or a diesel pickup truck, your engine will require oil — it's the magical fluid that keeps everything cool and lubricated, enabling all moving components ...

Car engines have used motor oil for the whole of automotive history, and during that time a lot of myths have cropped up about its use. Here are a few.