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 ...

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

You can find 0W-8 engine oil used in a handful of Toyota and Mazda vehicles. It's frequently used in hybrids, like the Mazda 2 Hybrid 1.5L sold in overseas markets and the Toyota Corolla Hybrid. Other ...