I leave my 5th wheel hitch in my PU most of the year, so it's pretty much subjected to all the weird weather we have up here in the Northwest. I have notice a fair amount of rust, particularly on the top plate where the paint has rubbed off. I periodically spray it with WD-40, but I'm thinking I need to put a heavier grease on it. I've resisted doing that because it ends up on everything and collects grim. What are others out there in TDR world doing to take care of their hitch as well as their kingpin?


