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 ...

Oil in a car that is not driven should be changed at least every 6 to 12 months. While unused motor oil can last for years in ...

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 ...

Dear Tom and Ray: Four auto-repair shops that I sometimes use (including a Toyota and Subaru dealership) recently have started to heavily promote additives. They claim that $43 worth of additives for ...

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 ...