Corrosion is something you live with on a day-to-day basis in the Northeast, and it’s not just limited to vehicles, it affects everything made of metal. The road salt, the humidity-laden air, soft absorptive soils, acid rain, and road chemicals all work in a harmonic quintet to do their damage to the metals on your 4×4, and they do it damn well too. Factory precautions from manufacturers do help, but over time, this retardant is usually overwhelmed by the environment (natural or man-made), and things can go from bad to worse in just a few months if left unregulated. . . Continue reading on fourwheeler.com