What happens if you put gasoline in a diesel car? What if I put gas in my diesel truck? What if you put diesel fuel in a gas car? We'll walk through all of the components, the fuel tank, in-tank pump, ...

Heed the advice on the cover of the Hitchhiker's Guide to the Galaxy and don't panic, at least not yet. Or, maybe just panic a little on the inside, but maintain your calm demeanor on the outside.

A common winter belief is that drivers should have at least half a tank of gas in their cars so the gas doesn’t freeze — but ...