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 ...

The oil inside your car's engine can sludge up with neglect and infrequent oil changes. Sludge is a nasty contaminant that can destroy an engine if not given attention, but timely oil changes are a ...

Most people understand that motor oil is a vital component for the internal combustion engines that power most of our cars. Not only does oil act as a lubricant, allowing internal moving parts to ...

Many car owners think oil only fails when the miles rack up. Wrong. Even when your ride sits for months, oil ages and degrade. Factors like exposure to condensation, temperature swings, and ...

Before exploring the causes of excessive oil consumption, it is helpful to point out that all engines consume some oil through normal operation. Your engine oil forms a lubricating film between the ...

Fuel dilution of the engine oil is a problem that faces many modern combustion engines. Also known as “crankcase dilution” it is a process where fuel is leaked into engine oil when it travels towards ...

Your engine’s oil pressure is one of those things that needs to be just right. If it’s too high or too low, it can be indicative of other problems. This is especially true with high oil pressure, as ...

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 ...

To understand how overfilling your engine oil is too much of a good thing, it’s helpful to provide a little background. Engines are comprised of hundreds of precision-crafted parts working in unison ...