Forum Discussion
Johno02
Mar 21, 2015Explorer
Most tire stores and dealers now will install nitrogen in your tires for a price. My local tealer will refill mine free if they installed it originally. Otherwise, it costs extra. Purpose of nitrogen si to prevent oxidation of the inside of the tire from the oxygen inside. After an amount of time, the oxygen inside is mostly gone, leaving only nitrogen, and a few small bits of other stuff. The outside of the tires are exposed to high levels of oxygen all the time, and also sunlight which is even worse. So if it makes you feel better, use nitrogen to inflate with, otherwise just use DRY air.
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