These are the original car tires. I babied them, and I am an easy driver, and most of my driving is short trips.. Rotateed them every 5,000 miles. After 30,500 miles, the measurement is 4/32nd. I had a road hazard on one, so I had to replace them early, but I think they were good for about 5,000 more. That is better than what I have read. I did not like them because of the road vibration and noise. I think it was a poor OE tire. I replaced with Bridgestone Ecopia 422. I want to see if the LRR makes a difference. Excellent warrenty.