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At the dealership I work, we've started selling a service where your tire is completely deflated, and inflated with nitrogen. The information I'm getting is that nitrogen (a) does not fluctuate in pressure during temperature fluctuations, and (b) leaks out 6x slower than air in the event of tire wear/damage.
The company's called Purigen98. I'm certainly not pushing this, as I see this benefiting only those who don't check their air pressure regularly, or who drive in colder climates. Anyone had any experience with it?
I work on military aircraft and we use 100% nitrogen because of the benefits of no pressure change with temp change. However, they do leak out. If you use a schrader value, which is what all tires use military and civilian, they will leak.
since the tires heat up as you drive and change the temp of the air inside it, it also assists even in stable weather. will have better tire wear if inflated to proper pressure
we use nitrogen to fill our paintball tanks for the same reason. previously co2 was used and you would have a gun shooting at 2 different speeds before and after use, or in the morning and in the afternoon
when your tire goes flat and your in the middle of nowhere, where do you get your nitrogen then? I'll stick with my Oxygen. I have an air compressor pump that runs off my belts system anyways. If gas stations had Nitrogen everywhere it would seem a little more realistic. But if your car is an around town driver, i guess it doesn't matter.
Compared to oxygen, nitrogen is inert; it's unlikely to combine with other elements (i.e. to form rust). Also, the nitrogen molecule is is larger in diameter than the oxygen molecule and will leak more slowly through a porous barrier (i.e. the rubber in the tire).
However, no one puts pure oxygen into their car's tires; like k350, most people put AIR (78% Nitrogen, 20% oxygen, 2% other) into their tires.
Nitrogen gas will still exhibit pressure changes when it's temperature changes and the volume of it's container remains constant. The Ideal Gas Law (pV = nRT) is still in effect.
Yes, nitrogen-filled automobile tires will lose their tire pressure over time more slowly than tires filled with air, but I dare ya to notice the difference.
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