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.

Unscrupulous auto dealers trying to aggressively push rustproofing is generally thought of to be a scam nowadays. Even the folks at Consumer Reports recommend skipping it. Well, I'm not going to ...