Nitrogen filled vs. standard air in tires
07-18-2007, 08:17 AM
#33
It's a scam. *All* gases follow Bolyle's Law, P1V1=P2V2. As far as leaking, if tires"filtered"out N
they would reach a concentrtion of 100% Nitrogen all on their own as the other gasses leak out. The other "feature" of N is it won't oxydize the tires from the inside. Pretty funny as they are already exposed to plain air on the outside. So, someone prove now how pressure/volume of N is actually different than plain air (not "more predictable" beacuse it's "pure"). This whole scam makes dumb car owners think, maybe more but probally less, about checking their tire pressure like they should learn/teach. I could go on and on, but have to split now.
07-18-2007, 08:28 AM
#35
Cool.I think Tire Shops want customer to come back to THEM for free N.I had a guy who wouldnt let me
add air from my 12v compressor because he had a 1/2 flat tire that supposedly had N installed. He finally relented because I was concerned enough to convince him other wise, but damn, why complicate tire service even more for people? Funny too, how Racers use N, ok well they have pretty specific needs and REALLY hot tires. The fact they use it makes me assume raod cars DON'T need it. lol.
N is atomic number 7 and O is 8, making it more dense and less prone to leaking.<ul><li><a href="http://periodic.lanl.gov/default.htm">Los Alamos Periodic Chart of the Elements</a></li></ul>
N is atomic number 7 and O is 8, making it more dense and less prone to leaking.<ul><li><a href="http://periodic.lanl.gov/default.htm">Los Alamos Periodic Chart of the Elements</a></li></ul>
07-18-2007, 08:37 AM
#37
Keeper of the Cash
Thread Starter
For the record, my Firestone dealer has never once even mentioned adding pure N to my tires
I was just toying around with the idea. Plus, $3-5/tire vs. 78% N free air is pretty straight forward IMO.
07-18-2007, 09:54 AM
#38
Not much a scam. AutoXer's do it because the inert gas helps keep moisture out...
This moisture, just like that inside brake lines, is what expands with heat - hence the higher tire pressures after each AutoX run. A tire filled with Nitrogen is easy to warm up to operating pressures - even 1 run will do it, and maintains it's pressure even though the tires continue to warm up.
07-18-2007, 11:06 AM
#39
Junior Member
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It has been a couple years since I took a class on this subject, but doesn't P1V1=P2V2 only apply to
a "perfect gas". Which air is not. Correct?
Again, not disputing you, just seeing if I have my facts straight.
Again, not disputing you, just seeing if I have my facts straight.
