A few days ago, I went to the gas station and was chased by the attendant recommending a fuel additive, claiming it could ...

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 ...

Fuel additives can promise better car performance, but there’s not enough data to verify the claim. Regardless, certain vehicles likely wouldn't benefit. Many, or all, of the products featured on this ...

Fuel injectors can get gummed up with dirt and fuel residue over time. Photo credit: David Traver Adolphus / Autoguide.com. Over time and miles, your car might start to slow down. It might not ...

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.

First, let’s talk about my new car, which I’ve been driving for only six months and hasn’t even reached ten thousand kilometers. A friend had told me, "You need to take care of a new car," so I bought ...

Along with improving reliability and performance by enhancing control of the air-fuel mixture, injectors also need less ...

To many people, gas is gas — as long as it’s conveniently located, it’s good enough for them. But is there more to know about what’s coming out of the pump? Is there a difference between brands?

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 ...