4 Michelin hydroedge St P225/60R16 97T tires have only 11,020 miles since purchase and are showing heavy cracks in the outer circumference tread portion of the tire.. it appears to me that the tread has a bad compound mix.. three of the tires show production code M33vf6wx5208. The other tire shows M33vf6W4008..

- Silver Spring, MD, USA

I had purchased four douglas brand tires from wal-mart model X-trac 2. over the past two years three (3) of the tires have had sidewall blowouts, two at highway speed, and one while parked. The dot number on the tires are pjx3011R3507. All three blowouts were preceded by a slow air leak that could not be found and all three had a catastrophic failure on a vertical line from the base of the tires tread, on the sidewall, to just above the bead. Also, in all three cases, there was not evidence of cord separation and bulging at the site of failure.

- Moses Lake, WA, USA

I bought 4 new tires at sears in wlilmington, N.C. last may, I have put less than 12,000 miles on these tires. Beginning in ;April of 08, I started to notice a low tire and proceeded to the station to pump it up. As I was putting air in the tire I heard air escaping and moved the valve stem and it was loose. I put enough air in it to get around the corner to the service station and he said it was the stem. I was trying to decide how I was going to afford a new tire and he said that he could replace the valve stem. He charged me $10. This happened about three weeks later and then again this week, May 21! three tires out of four have had the stems replaced. I have been driving over 40 years and have never had this happen to a tire, I didn't even know the stems could be replaced. I called sears and they told me to bring a receipt for fixing the tires and they would refund the money.

- Oak Island, NC, USA