Might sound like kind of an odd request. I am looking to get a hitch insert to just leave in the back of my truck (protection from those idiots that like to get too damn close to me in parking lot). Obviously over time it will start rusting in there. I am looking for any ideas like a grease or lube or something that won't retain water (accelerate rust) and will prevent the insert from rusting to the factory bumper hitch over the next 10 years.
allot of people around here just leave them in and I have never heard of any problems with rusting tight. Personally I find myself whacking my shins on the damned things to much when I forget to take them out to make it worth while.