Over time and miles, your car might start to slow down. It might not accelerate as quickly as it once did; the engine ...

John Paul, AAA Northeast's Car Doctor, answers a question from a reader curious about using Marvel Mystery Oil. AP Photo/David Zalubowski Q. I perform routine maintenance on my family’s cars and just ...

Find out why this special liquid is so important for trouble-free operation of engines stored for more than a few months.

Winter is the time of year that really puts diesel trucks and tractors to the test. Sure, a boosted engine loves cold air, but you know what doesn’t? The fuel that makes these workhorses run. That’s ...

Amsoil's diesel All-in-One fuel additive combines the benefits of Amsoil Diesel Injector Clean, Diesel Cold Flow, and Diesel Cetane Boost in one package. According to the company, the additive ...

During the use of a car, engine carbon buildup can be a source of concern for many car owners. Many owners notice a gradual decline in vehicle performance but are unsure whether it is related to ...