Yamhama :rofl: :rofl:

Get new tires when they wear out...it's not brain surgery. I use Maximum Performance tires, so mine only last 2 summers...or like 25-30,000 miles. But I refuse to vote nonetheless.

Bottom line - it all depends on the tire and your driving habits. I could probably burn my tires up in 10k or buy really hard tires and make them last 70k. There is no golden standard at all.