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 ...

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

Comprehensive guide on using fuel system cleaners to protect vehicles from E20 petrol's side effects,featuring STP products and manufacturer recommendations for maintaining engine health.

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 ...

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 ...

Mitsui O.S.K. Lines, Ltd. (MOL) announced development of a carbon-dioxide-reducing, efficiency-boosting fuel additive for merchant ships, in conjunction with Taihokohzai Co., Ltd., Japan’s largest ...