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.

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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 ...