No road salt (winter) equals no rusted frames. The one thing I have issues with are the steel brake lines that American manufacturers like to use. They all eventually rust out (salt or no salt) from moisture splash. I've replaced brake (hard lines) on a couple vehicles now and in the process of re-hard lining another. Don't know why domestic builder don't use nickel copper alloy hard lines like European builder do. They last the life of the vehicle, are much easier to work with and not as expensive as the pre bent steel lines.