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 ...

Automakers recommend oil changes at specific intervals, and there are lots of reasons for that. But is improving engine ...

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 ...

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

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 ...

Ever wondered what all those letters and numbers mean, and how they affect your car? Here are all the answers you need.

The sludge is the semisolid leftovers (also known as “goo”, “gunk”, and “crud”) from used engine oil that sticks in piston cylinders and can reduce performance and even damage engines to the point ...

Mechanics are blunt about it: the “little” oil spot under a parked car is often […] ...

Your vehicle requires regular maintenance with things like oil and other fluid changes, but this may not be enough to truly keep your vehicle operating at its peak performance. From time to time, you ...