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Old 07-21-2015, 11:28 AM   #21
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Originally Posted by Camping Couple View Post
Nitrogen is an inert gas. It will not expand or contract. ...
This is totally wrong. First, nitrogen in NOT an inert gas. The inert gasses are helium, neon, argon, krypton, xenon, and radon. They are considered inert in the sense that they are chemically unreactive. Nitrogen is definitely reactive...if it was not, we would not need some of the emission control equipment on our cars & trucks. Secondly, ALL gasses expand and contract depending on temperature. Some more than others but they ALL do. If you don't see any changes in pressure with temperature in your nitrogen filled tires, you need a better gauge.

There are valid reasons to use pure nitrogen in some applications, i.e. aircraft tires and high end racing tires, but in our cars, trucks and trailers there's just about zero benefit. It's mostly a marketing ploy. And as some have pointed out, air is 78% nitrogen anyway.
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Old 07-21-2015, 04:02 PM   #22
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This is totally wrong. First, nitrogen in NOT an inert gas. The inert gasses are helium, neon, argon, krypton, xenon, and radon. They are considered inert in the sense that they are chemically unreactive. Nitrogen is definitely reactive...if it was not, we would not need some of the emission control equipment on our cars & trucks. Secondly, ALL gasses expand and contract depending on temperature. Some more than others but they ALL do. If you don't see any changes in pressure with temperature in your nitrogen filled tires, you need a better gauge.

There are valid reasons to use pure nitrogen in some applications, i.e. aircraft tires and high end racing tires, but in our cars, trucks and trailers there's just about zero benefit. It's mostly a marketing ploy. And as some have pointed out, air is 78% nitrogen anyway.
Ok, maybe I used the wrong term. I use nitrogen a lot in my field of work. Pressure testing and flowing in refrigeration piping systems while brazing. I do know using nitrogen to pressure test a refrigeration system, over a 24 hr period my pressure will not budge even with large temperature changes.
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Old 07-21-2015, 05:48 PM   #23
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If you're really serious about running nitrogen in your tires, then you need one of these...

Tanner Racing Products 20950, Tanner Racing Products Extreme Tire Management System | Tanner Racing Products
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Old 07-22-2015, 06:32 AM   #24
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If you're really serious about running nitrogen in your tires, then you need one of these...

Tanner Racing Products 20950, Tanner Racing Products Extreme Tire Management System | Tanner Racing Products
without this you are wasting time and money.
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Old 07-22-2015, 06:40 AM   #25
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If you need to top them off, you can just add regular old air. No big deal.
I much prefer new air. I do not like using old air unless I am stuck in a jam.
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Old 07-23-2015, 05:39 AM   #26
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I only use 78% nitrogen in my tires. The price is right and available everywhere.
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Old 07-23-2015, 06:40 AM   #27
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I only use 78% nitrogen in my tires. The price is right and available everywhere.
...and free!
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Old 07-23-2015, 06:41 AM   #28
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On my TV I have Nitrogen inflated tires and they do seem to hold the pressure longer. On the TT, regular old air. Whether or not you use Nitrogen or air, the important thing is to keep your tires filled to the recommended pressure. *Most* of the rubber you see on the road is from tires which were under inflated and peeled, and according to the retread industry, they are NOT retreads, but new tires.

My tires are checked before EVERY trip, regardless of how long, and often the trailer tires require 3 or 4 LBS to fill them up which I do with regular ole air. So use air, nitrogen or helium, but check the pressures often which will be a far greater benefit than what gas you use to inflate them with.
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Old 07-23-2015, 08:06 AM   #29
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Just a bit of a difference between a tire doing 150mph around a curve every minute or so and your car doing 85.

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Originally Posted by Roadwarrior56 View Post
Well since EVERY racing team uses it in their tires to maintain a consistent pressure during a race, I guess you could call it a scam on the unknowing public....
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Old 07-23-2015, 09:06 AM   #30
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So many experts...so little time to understand. LOL
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