Well, so much for keeping "higher" pressure in my Dunlops! This blow out happened a couple of weeks ago while we were on the KS Turnpike, running between 65 - 70 miles per hour. Up until this, I've kept our tire pressure at around 48 psi. I figured with a limit of 51 on the sidewall, this should be ok.
It turns out this tire had some "road damage", ie a puncture, and that caused the blowout. With that, the tire isn't covered by the dealer, or tire manufacturer, even with only 12,000 miles on it.
For those interested, this was the right front passenger tire. At this speed, the car handled extremely well - no side to side, no severe loss of control. It looks terrible because the rim ate the heck out of it before I could slow down and pull off the highway. If this happened in town at a slower speed, it wouldn't have looked so bad.
I had fun taking this into the dealer and telling them I had a small problem with my tire and wondered if it could be repaired. They busted a gut when I opened the trunk and showed them this.
Oh well, lesson is, do what you think is best, and be prepared!
Mike