If you're tired of worrying about valve stems, you need to buy them on your next set of tires, even if their load rating is 80 lbs. put pressure on them. You can take it. So next time you get a new set of tires and they tell you if you want new valve stems, you can tell them no because they will last the life of your car. This will be the last set of valve stems you will buy. If you now have TPMS sensors on your drive card, you're out of luck.