At an Escapee Boot Camp a Goodyear engineer told us that concrete is the only surface you need to do something about. After a vehical has set for a period of time there is a black mark on the concrete. That's the anti-aging compound of the tire leaching out. According to him, dirt, gravel and asphalt don't do it.
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, MorRyde pin box
2017 3500 Dodge Maxi DRW 4X4, Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, etc.