[Jim Caughlin]

So far, no one has mentioned that front end alignment is a big factor in tire wear. I can tell you that I regularly have race cars in my shop that make a significant scrapping noise when being pushed across the concrete floor which indicates they certainly are not in alignment. I also regularly see 'peeling' on front tires which is another indication of improper alignment. Lastly, lots of cars have bump steer issues which are causing premature wear. I wouldn't be so quick to blame the manufacturers. Quite honestly, I usually am changing front tires because of their age long before the tread wears down.