Well 60,000 million--never ;)
A few push the 60K number; a regional tire distributor is advertising a
100,000 tire. Realistically that rubber would be so hard that I wonder if it
would have any grip. Most people have forgotten about any warranty by the
60k mark, and if you don't quite make it then the tire dealer offers them a
pro rated offer perhaps 10 dollars off each on the new set.
My tire preference is the brand we sell, based on performance and what I see
on a regular basis. Also my discount plays into it allot. There are a few of
our names I don't like based upon the tread depth. I don't like tires that
have the edge tread 2/32 less than the center because if you corner allot
then you wear the tires edges and then your tire looks worn out while there
is still tread in the center.
I hate Michelins only because thy have a stiff sidewall and are hard to
remove from the rim sometimes. But as far as being "nail magnets" it seems
as though all tires are equal. We do see more nails and flats in tires that
are 80% worn...
Stephen W. Hansen
ASE Certified Master Automobile Technician
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