I agree with jwmll. I started replacing my original Michelin's with two new Michelin on the front(thru FMCA). One tire started going bad on a trip within 18 months and less than 10,000 miles. (vertical bulge on one tire's side wall) I felt this was a defect and Michelin has a 5 year warranty on defects. I stopped at 3 Michelin dealers on my way home, all said the same thing. Michelin will say " they don't make defective tires" and there is little chance the bad tire would be replaced. I got home , took the bad tire to the local Michelin dealer , they removed and inspected it and reported what they found to Michelin. Michelin then requested the tire be sent to their inspection center. It now 6 months later. No response from them at all. My conclusion , then don't back up their product. This summer I purchased 4 more new tires, TOYO's.