It might seem like a small detail, but the color of your engine oil can speak volumes about what’s going on inside your car.

DETROIT - In the latest example of Volkswagen of America Inc.'s quality woes, the automaker is warning 426,000 VW Passat and Audi A4 owners of an engine oil sludge problem. Affected are 1.8-liter ...

While fresh oil is generally transparent and amber colored, black oil may mean it's time for a replacement and frothy oil can ...

After servicing a 2018 Ford Edge, a mechanic decided to alert its followers about the potential risk of engine sludge. Sherwood Cooke Jr. and Sherwood Cooke III, father and son duo behind the Royalty ...

Motor oil has quietly become one of the most important choices car owners make, especially as vehicles routinely cross ...

Consumers saddled with sludge-clogged Toyota engines may soon get some help from the Japanese auto giant under the terms of a class-action lawsuit settlement that covers roughly 3.5 million Toyota and ...

Saab Automobile AB is joining the ranks of automakers that provide extended warranties on engines prone to oil sludge buildup and possible failure. In the United States, letters announcing the ...

Am I negligent? I assume so, since I have not had the oil changed in my 2011 Hyundai Tucson since 2015. I put lots of short trips on this car, and it doesn’t even have 40,000 miles on it yet. Don’t ...

What the rest of the world calls engine oil, in Bangladesh, it's known as mobil with a lower case M. Goes to show ...

Dear Car Talk: Am I negligent? I assume so, since I have not had the oil changed in my 2011 Hyundai Tucson since 2015. I put lots of short trips on this car, and it doesn't even have 40,000 miles on ...