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

High Detergent? High Definition? Howdy Doody? Just what, exactly, does it mean when the label on your vehicle's motor 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 ...

Walmart's best selling motor oil happens to be the company's private label product. Made by Warren Distribution, a manufacturer that produces several other store-brand oils, expert analysis has ...

But what exactly do those codes mean, and, in particular, what does the "W" stand for in engine oil? When it comes to understanding these codes, the "W" part is perhaps the easiest to remember.

Motor oil covers everything in a thin ... Even if you don’t care about those things (and you should), the EPA labels oil dumping a criminal discharge of a hazardous substance.