

| Subject: | Re: Tire question: Sorry, but ... |
| From: | Dave Mcneely |
| Date: | Mon, 30 Aug 2010 09:33:58 -0500 |
---- Mike S <mikes@FLATSURFACE.COM> wrote: Yea, Yea, Yea! Glad to see someone say this out loud. When I said it to a salesman in a tire store, I got one of those "Huh, say again," looks. Now Shell is promoting that their gasoline contains nitrogen. Huh? Guess that's like in TNT? Kaboom! Exactly what we want from gasoline, right? DMc > BS. Air is 78% nitrogen to begin with. All gasses follow Gay-Lussac's > Law extremely closely, unless at temperature extremes (think absolute > zero and plasma heat). There are 2 legitimate reasons to use N2 in > tires - the military uses it in some aircraft to eliminate a fire > hazard from the oxygen in air, and race teams use it because a bottle > is cheap, and can be used to fill tires without needing either a > compressor or electricity (or they believe the BS the N2 salesman told > them). A third reason to use N2 is so tire stores can make additional > profit. -- David McNeely
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