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 ...

Basically, modern cars use lighter, lower-viscosity oils because they can. Because engine technology and petrochemical ...

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

BP is thinking about selling its Castrol motor oil division in a deal that could be worth £8billion. The British energy giant is under pressure from investors – including activist Elliott ...

If you’re a powersports enthusiast, you already know how important oil is to your engine. It is the main barrier between having a good time and ruining a ride with a costly breakdown. Your motor ...

Your mechanic and grandpa are both barking at you to get your oil changed every 3,000 miles. But cars have advanced past the Model T, and what we use to lubricate our engines is a bit higher-tech than ...