I only got 35k out of the Michelin LTX's... which in my mind is completely unacceptable. My wife is the primary driver and she is far less aggressive than I am. I do tow a trailer house with the Expedition but not enough to wear out the tires that fast. I was buying Michelin's for my Ford Fusion too, but they also wore out sooner than they should have too. Both vehicles had alignments done before I put on the Michelins. I don't know if they changed the formula on their tires or I just got a bad batch. I also did my homework on them. On paper they were perfect. In snow/ice they were great. But wore out way too fast. I also had set of Hankooks. They seemed to be alright, I wish I had them in a higher ply than I did, they were sloppy with the trailer. I'll see how these Coopers do. Just my two cents.