Q: I have a couple of friends: one swears by oil additives – especially the brand Lucas – and another claims an oil additive ruined his truck engine. What is your take on oil additives? A: Some oil ...

Viewer-submitted questions for The Car Doctor: Q: My car makes a funny sound when I turn left, like grumbling noise, but not when I turn right. Will I get charged if I bring the car to be diagnosed ...

John Paul, AAA Northeast's Car Doctor, answers a question from a reader curious about using Marvel Mystery Oil. AP Photo/David Zalubowski ...

Do you agree with the “factory trained” attitude held by all mechanics that no additives should ever be used, and the only way to improve the miles per gallon on a car is to give the engine a good ...

Chances are you’ve already got a box full of tools for working on cars and trucks. Socket wrenches, combination wrenches, gear pullers, and countless specialty tools that are for doing just one thing ...

With the nationwide rollout of E20 petrol, car owners, especially those with older, non-E20 compliant vehicles are worried about long-term damage to their vehicles along with a noticeable drop in fuel ...