Engine oil turns black from a combination of combustion byproducts, heat oxidation, and detergent additives suspending carbon particles in the fluid. Black oil is not automatically a sign of a problem ...

A vacuum leak can cause a variety of drivability issues in your vehicle. Here's how you can isolate the leak and the steps you should take to fix it.

The Mopar 440 powered late '60s Dodge and Plymouth cars, with both standard and iconic high-performance versions putting ...

RealTruck.com reports on the latest truck accessories, featuring new products to enhance vehicle performance and style.

A crate engine can be just what you need to finish your project car, and these Ford powerplants can be had for a remarkably reasonable price.

A check engine light that returns after being reset means the underlying fault has not been repaired, only cleared from the vehicle’s diagnostic memory. The OBD-II system monitors engine and emissions ...

One of the Volkswagen Group’s most widely used engines is at the center of a new class action lawsuit in the United States.

Plenty of aftermarket sellers stock breather bolts for Harley-Davidsons. But what are they? And is it a good idea to install ...

Ditch the drab factory units in favor of billet Godzilla valve covers. SPE Motorsport brings rugged aluminum looks to your build.