NEW Michelin LTX M/S Sidewall Blowouts
These LTX M/S tires were recommended to me and positioned as "outstanding replacement tires" by the Michelin help line. This was for my 2008 Class C Winnebago RV. I had 6 tires installed. At 3550 mi (<2/32" wear), 1 of the rear tires blew out the side wall where the tread is capped to the side wall (Sunday afternoon, middle of Iowa). Since I had to use a roadside tire sevice to replace it on the highway, I didn't get a chance to inspect the other tires.
About 300 miles later, another tire blew out the side wall in the same way. This time I was near a tire store. Upon close inspection, one other tire sidewall was on the brink of blowing, and yet another was showing major cracks in the sidewall in the location where the others blew. At that point, I had the 2 remaining "good" tires replaced out of fear.
I contacted the "RV person" at Michelin and informed him of the build week/year and described the situations and potential horrific outcome. The next day, he told me that he had contacted the dealers who had changed my tires. His conclusion based on no data was that the cause was "sudden air loss." He had no concern whatsoever about what CAUSED the "sudden air loss." I told him that the I checked the tires daily to ensure they were at 78 psig. I offered to send him all of the high res close up photos that I took of the blown and nearly blown tires. He had no desire to get these.
This absolutely amazed me. Being an automotive engineer in a management position with over 30 years experience myself, I would have certainly wanted to determine the root cause; potentially get others off of those tires in order to save not only lives, but a possible massive lawsuit; and protect the reputation of Michelin. The Michelin RV Rep had no desire to do any of these. All that he would offer was a "good will discount" if I wanted to BUY another set of Michelins. If anyone has these tires (build 1018), you should have them checked immediately. My photos will be posted on the web soon!