Q: I live in Southern New England and, in the past, I have had problems with undercarriage rust ruining brakes, mufflers and even the frame of the car. I get the same story: Drive it more, keep it ...

After the purchase of any new car, an opportunity to rust proof arises. Should you do it, or is it just a waste of money? First, it's important to know what rust is. Rust is an example of corrosion.

In the halls of Chrysler, old-timers used to talk about a rust-proofing shop across the bridge in Canada. "Yeah, they use oil, which isn't allowed in the U.S.," they would say before highly ...