Home mechanics have been pouring vegetable oil into engines for years, sometimes in the fuel tank, sometimes straight into ...

Putting vegetable oil in a car engine is a terrible idea and should never be done, or at least that's what some experts say.

Changing your car's oil is a great feeling, right? You save money, you feel self-reliant, and you get to look at the black goop you just drained and think, "Yep, that did some serious work in there." ...