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Old 07-17-2014, 10:00 AM   #1
camarocruzer
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Nitrogen filled tires??

So I bought my new 2014 2SS/RS on July 2 and today I took notice of the tire stem covers.

They say "N2"!?!

I didn't know these ties were nitrogen filled??? How cool!

Anyone else?

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Old 07-17-2014, 10:04 AM   #2
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In colder climates, Nitrogen filled tires are a good thing. Nitrogen leaks out of rubber much more slowly than regular air. In warmer climates, like Texas where I am, Nitrogen filled tires are a waste of money. There are a few places that try to sell them down here at $100 a pop.
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Old 07-17-2014, 10:05 AM   #3
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That would be nice I love nitrogen fill.
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Old 07-17-2014, 10:12 AM   #4
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I keep my tires at 78% nitrogen year round
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Old 07-17-2014, 10:13 AM   #5
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Nitrogen is good for track performance as the purity of the gas (less moisture, other contaminants) mean less expansion/contraction under extreme temperature conditions. A regular tire filled to 35psi might increase to 41 or so PSI with track use, but when filled with a high purity of N2, would only increase to maybe 37 or 38 psi. N2 and regular air have similar expansion/contraction qualities, but all the other junk in typical compressed air (moisture, contaminants) cause the increased pressure fluctuation.
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Old 07-17-2014, 10:14 AM   #6
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I keep my tires at 78% nitrogen year round
Me too!
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Old 07-17-2014, 10:23 AM   #7
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Originally Posted by RubberChicken View Post
In colder climates, Nitrogen filled tires are a good thing. Nitrogen leaks out of rubber much more slowly than regular air. In warmer climates, like Texas where I am, Nitrogen filled tires are a waste of money. There are a few places that try to sell them down here at $100 a pop.
It is $7/each at Goodyear. The dealer filled mine for free.
I haven't had to add air since (~2 years).
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Old 07-17-2014, 10:25 AM   #8
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Pretty cool. I was just surprised to see that. I don't even think the dealer knew about it!
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Old 07-17-2014, 10:27 AM   #9
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It is $7/each at Goodyear. The dealer filled mine for free.
I haven't had to add air since (~2 years).
That's insanely cheap! The Jiffy Lube in Lewisville was the one charging $99 for all four tires.
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Old 07-17-2014, 10:34 AM   #10
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I keep my tires at 78% nitrogen year round
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Old 07-17-2014, 10:37 AM   #11
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My home compressor can separate N2 out of the air and provide a 78% (not really as efficient as industrial) mix for my tire fills ... what whaaat!!???
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Old 07-17-2014, 10:45 AM   #12
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Wife's minivan got tires at COSTCO and they use nitrogen....and will refill for free if the tires get low.
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Old 07-17-2014, 11:16 AM   #13
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I keep my tires at 78% nitrogen year round
That is typical of a Class M planet.
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Old 07-17-2014, 11:36 AM   #14
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S & S or Firestone here charges $5 per tire.
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Old 07-17-2014, 11:37 AM   #15
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That is typical of a Class M planet.
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Old 07-17-2014, 11:37 AM   #16
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Originally Posted by RubberChicken View Post
In colder climates, Nitrogen filled tires are a good thing. Nitrogen leaks out of rubber much more slowly than regular air. In warmer climates, like Texas where I am, Nitrogen filled tires are a waste of money. There are a few places that try to sell them down here at $100 a pop.
That's not true, nitrogen is what the air we breath is made most of. 80% or more. The only reason nitrogen is used, is it has no moister in it to mess the TPMS up. We use nitrogen in aircraft for high pressure, if you have dry air tires can be filled with that. How does anyone know if the installer is using nitrogen or air? Do you have a way to prove that? Nitrogen will leak just like air.
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Old 07-17-2014, 11:40 AM   #17
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Originally Posted by Mean Green Z28 View Post
My home compressor can separate N2 out of the air and provide a 78% (not really as efficient as industrial) mix for my tire fills ... what whaaat!!???
Air you breath is 78% nitrogen! it takes a very expensive machine to get 100% nitrogen. There is no compressor that separates N2 for a low cost.
Should never pay for nitrogen, air will work if dry, or use out a bottle. The so called compressors that say they make 100% nitrogen is BS.
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Old 07-17-2014, 11:42 AM   #18
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Old 07-17-2014, 11:48 AM   #19
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Originally Posted by Evergreen6 View Post
Nitrogen is good for track performance as the purity of the gas (less moisture, other contaminants) mean less expansion/contraction under extreme temperature conditions. A regular tire filled to 35psi might increase to 41 or so PSI with track use, but when filled with a high purity of N2, would only increase to maybe 37 or 38 psi. N2 and regular air have similar expansion/contraction qualities, but all the other junk in typical compressed air (moisture, contaminants) cause the increased pressure fluctuation.
How can that be? When the tire was mounted it had air in it, all you do is add nitrogen to the air, so you never have 100% nitrogen. Also we did tests and the tire raises pressure the same hot or cold at anything under 200lbs with n2 or air.
All nitrogen is used for is dry, compressed into a small tank for on the track, and very high pressure.
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Old 07-17-2014, 11:53 AM   #20
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Nitrogen is very cheap if you but it in bulk form (liquid) I have almost 1500 gallons on hand right now. Liquid Nitrogen is extremely pure normally 99.998% or greater and has no moisture when delivered as it is 320 degrees below zero in the liquid state and an expansion ratio of 1:694. Nitrogen will extinguish a match if you place it in a container filled with the gas but compressed air will support combustion.
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Old 07-17-2014, 11:54 AM   #21
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Mount and fill the tires in a vacuum to get full nitrogen.
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Old 07-17-2014, 12:01 PM   #22
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Yep! Me too. AIR, but I do use nitrogen tank to fill the tires. I know it is dry and it is a small tank I have on hand.
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Old 07-17-2014, 12:04 PM   #23
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Mount and fill the tires in a vacuum to get full nitrogen.
Yes that's the only way to get 100% but that's not worth doing.
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Old 07-17-2014, 12:04 PM   #24
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I keep my tires at 78% nitrogen year round
same here
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Old 07-17-2014, 12:06 PM   #25
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Nitrogen is very cheap if you but it in bulk form (liquid) I have almost 1500 gallons on hand right now. Liquid Nitrogen is extremely pure normally 99.998% or greater and has no moisture when delivered as it is 320 degrees below zero in the liquid state and an expansion ratio of 1:694. Nitrogen will extinguish a match if you place it in a container filled with the gas but compressed air will support combustion.
To get 99% nitrogen they liquify it do they not?
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