I recently purchased a new fifth wheel triple axle trailer 18,000lbs empty.I installed a 20,000 lbs reciever in my truck. A person I met on a job mentioned I should greese the skid plate or it will cause premature tire wear on the trailer or truck Im not sure never asked.Is any one familliar with this? my fifth wheel reciever manuals are french, italian, german,no english(thank god the installation instructions were english). thks in advance He mentioned you can get the greese at rv shops.Ill check there as well.