One Tacoma owner ditched Toyota’s recommended oil for something thicker, and the results have sparked a heated debate. Is ...

Ultra-low viscosity oils are becoming the norm for modern engines, especially smaller units prioritizing efficiency.

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.