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Re: Now we know how long valve stems last Posted by sam96CS [Email] (#852) [Profile/Gallery] (more from sam96CS) on Wed, 20 May 2015 19:02:09 In Reply to: Now we know how long valve stems last, Jack Vines, Tue, 19 May 2015 16:57:38 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Rubber oxidizes, so the integrity of a tire manufactured over 6 year ago is questionable even if it has a lot of tread. Oxidation ruins valve stems also.
Replace valve stems when you buy new tires. If you don't drive much per year then make sure the DOT date stamps on new tires are very recent. Look for a 4-digit number such as "4914" which means the tire was manufactured the 49th week of 2014.
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