[Joshinator99]

Originally Posted by pzoom

Car companies have been zinc dipping (galvanize) for years. I know they used to wax dip truck frames. They also squeeze sealant on certain areas.

However unless you are driving a Delorean, any nicks, scratches, and trapped corrosive materials will cause rust. Best prevention is to do regular under body washes and paint any deep nicks.

Or, take the Joshinator99 method: never drive it in rain, snow, salt or anything other than a gloriously nice day. That said, I really don’t drive my car enough.