Let’s explain all of those confusing numbers, letters and terms to help you choose the right oil for your car.

Motor oil comes in a variety of forms, designated by pairs of numbers, but the most common two are 10W-30 and 10W-40. What's ...

Besides the environmental benefits, motor oil can be reused. It is re-refined, processed into fuel, or recycled to make other petroleum-based products. Everything from lubricants, like gear oil ...

There's a lot of information on the packaging for your engine's motor oil, but the S designation may be one of the most ...