Treadwear Number

…four-wheel drive and all-wheel drive vehicles use tires that are very closely matched. This is because different diameter tires roll a different number of times each mile as a result of the variations in their circumferences. Tire diameter variations can be caused by accidentally using different…

…identified by the DOT Tire Identification Number (TIN) branded on the sidewall) will be used. Tire warranties also expire when the tire's original tread is worn down to 2/32" (1.6 mm) of remaining tread at which time the tread blocks are worn flush with the treadwear indicator bars. "...tires...are…