My tire guy says he is not able to lawfully sell a tire over 7 years old.
The lesson here is, and I did it, is buying a tire with 100,000 mile tread wear out warranty, they were Toyo's, in 6 years i had one weeping air through a side wall with ~40,000 miles on them, lots of tread left. Take to dealer and he said if you are not going to put the miles on then buy a tire that is rated for less miles , say 40,000. So if you drive less than 40,000 in 5 years buy tires with a tread warranty of 40,000.
Anyway, I replace tires at 5 years or when tread is about 70% gone.
