[Robert McLinden]

I have done this a number of times on my Porsche (you think I would learn). It runs 265/40-18 Michelins. The cause was always me not checking pressure. They are low profile and just glancing at the tire you could be down 5 or more pounds and not notice it. The first one blew at 80+ mph and by the tire I stopped on only had bead left. The second one was a slow leaker and I felt it in time but still had separated the sidewall 75% of the way around. Also these tires run at 36 psi in the rear. It seems the low profile tires with the short sidewalls have no tolerance for running at reduced pressures. On the Michelin's the steel tread belt saws through the sidewall. Just my experience.