When shopping for tires, you’ll find the treadwear rating—a number indicating the tire’s predicted longevity—on the sidewall, the smooth section of rubber between the tread and the rim.

A. The Firestone FT140 tire is a good tire with a treadwear rating of 560 based on the Uniform Tire Quality Grade (UTQG) Standards. This number can give you an indication of treadwear life ...