Hey Scotty I own a GMC sierra 1500 2012 model and my rear wheel wells are starting to rust despite me applying oil guard to my truck every year. Do you have any product recommendation that i should use to spray the crap out of the wells to prevent rust from popping up... im from up north so we use a lot of salt on the roads during the winter.

once rust starts, it will NOT stop in an area. You can spray WD 40 all over it, but only cutting out rusted areas and welding in new metal stops rust