I have had my Line-X for about two years. It is the best. I have hauled gravel, pallets of block, brick, concrete, HVAC ducting(very sharp), and lots of hay. Just go to the local spray and wash and use the tire cleaner. It doesn't ever clean up like the first time but I spray in a little of the cheap wax and I think it helps. The only spot on mine that has came up was where it was torn off and it took the paint!!!!!!! I think that is pretty good. I also have it in both horse trailers and my wifes 2002 1500 4x4.