don't understand why people buy something made of metal, don't coat or protect that metal yearly and still expect it not to corrode. $129 yearly to Krown Rustproofing (Ontario) 2010 Ram, no rust, money well spent?, won't know for another 20 years. stay tuned!!
if anything take a powerwasher to the underside often, that helps tremendously, often the people complaining about rust dont wash their vehicles more than once or twice a year