Don, I agree most tire problems are caused by the heat generated by pressure being too low but we had some blowouts where just a few miles back the pressure was checked and was at 80 psi. Possibly I picked up a nail and it lost pressure, overheated, went flat, and was shredded by running flat. I never knew I had a flat until I was told by someone. Except the last time when we actually heard the tire pop.
I have a laser temp gauge and whenever we stop I make the rounds with that gauge. The tires are not running hot. Rarely do I see temperatures over about 90 with 110 being the highest I've seen even in the heat of summer. That's on the rubber. My problems were with Goodyear Marathon trailer tires. After all the problems we've had with them my solution was to dump them for a set of BF Goodrich Commercial T/A. Those tires now have 2,200 miles on them without a whimper. It will be a year or so before I'm ready to say it was a good move.
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