We may receive a commission on purchases made from links. There are dozens of things vehicle owners can do for engine care. But for many, extending an engine's life can entail more than just proper ...

Although engine oil enters cars as a yellow liquid, you'll almost always find its color to be brown or black when it's being ...

Drivers reach for gas additives with the hope of squeezing more life, efficiency, or power out of an engine. The pitch sounds simple: pour in a small bottle, drive, and let chemistry work things out.