ssia2485 wrote:
I would not recommend using a plug in a high pressure tire such as a motorhome or dually. I have tried this in the past and the damage done to the cords inside of the tire when you run the reamer through the puncture to enlarge the hole causes the tire to fail later down the road. This has happened to every high pressure tire that I have tried to plug. Now I go to the tire shop and have a patch installed inside of the tire. Never a failure with the patch.
Since 1984 I have not been without a vehicle that didn't require 80 psi in the rear tires. I am positive that I plugged tires on each of the vehicles and I never experienced any premature tire failures. I have always bought tires in sets of four for my vehicles and I have never needed to replace just one. I'd say that's a pretty good track record.
Bruce