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 ...

Yours truly has a neutral opinion regarding engine flushes: I believe engine flushes are only necessary when the engine has sludge buildup. Sludge is a dark and thick substance from contaminated oil, ...

For people buying a used car, there is a very important but rarely checked factor to consider that goes beyond kicking the tires: original sin. Some best-selling models appear to have an increased ...

Q:I have a 1999 Jaguar XJ8 (purchased new), now with 45,000 miles on it and covered by the best extended warranty that could be purchased when the original factory warranty expired. All maintenance ...

The effects of PCV failure are especially noticeable in turbocharged engines, where crankcase ventilation becomes critical ...

If you've ever removed your oil cap during a routine check or oil change and noticed a creamy white or yellowish, almost mayonnaise-like substance underneath it, you're not alone. You'd be well within ...

Toyota Motor Corp. said Friday that it was sending letters to 3.3 million Toyota owners in the U.S. in hopes of resolving a potential engine problem. Faced with a small but steady stream of complaints ...