I have a Chevy 2500HD with the 2.5" reciever and 2" reducer sleeve. I left the reducer in over the winter and some rust formed where the bottom of the reducer and the reciever meet. I had to knock the...
Ya, it's pricey, (about $10 - $15/can) but it stays where you spray it, wicks and creeps into cracks and small spaces, and lasts a long time. It comes out of the can about the consistency of white lithium grease.