On june 7, 2018, i purchase 4 tires that were supposed to last 40,000 miles. the odometer in my car read 68,832 miles. on october 16, 2019, i had a flat in one of them and went to the dealer who sold the tires (firestone) and they said that 2 of these tires are too worn out and not safe any longer. the odometer in the car read 92,540 miles. i had to buy 2 new ones and firestone gave me a discount for what happen (2 tires lasted only 23,708 miles). dot # y9fjdcwx0418 firestone article # 000845 35tn