Nitrogen Tire Thread?

If you were filling the tires on a 747, you'd want as little moisture in there over time as you could manage, to reduce its corrosive effects. For an automotive tire and wheel, I don't think moisture in these amounts is a problem at all.

 

Seems chris4x4 did some testing on this awhile back and came to the conclusion that it was a total crock.

 

Nitrogen is not inert. Whether it is or not has nothing to with it's expansion/contraction with temperature. There are a totally different set of laws governing that. If your pressure did not change over a temp swing of 40C, then you have defied the laws of physics.

 

You don't want air in an airplane tire because they rapidly heat when the tires hit the runway. Water expands a LOT more than nitrogen over a similar temperature swing and could cause issues with the tires such as them freezing while in flight (meaning still frozen at touch down) and rapid expansion causing the tire to burst.

With nitrogen, you don't pay to get nitrogen, you pay to not get moisture. The moisture expanding and contracting with the temperature swings is what causes the most noticable pressure swings. If you're buying nitrogen for your tires, what you're really paying for is dry nitrogen.

 

Not very scientific, but still here is the thread link I was refering to.

http://www.tacomaworld.com/forum/te...n-tires-warning-unscientific-test-inside.html

 

Air craft tires have nitrogen in them only because it does not promote combustion. They don't give a damn if there is moisture in them.

 

Untrue, they use Nitrogen in aircraft tires so that there is absolutely no moisture, no oil, and no other gases, because N2 is a dry, inert gas. If there is frozen moisture inside the aircrafts tire when it tries to land, that tire is going to explode.

But, on a lighter note.


Use Hydrogen in your tires, you'll get better gas mileage, cuz you'll float.

 

Nitrogen is used in aircraft tires because it will help to quench, rather than feed, a fire in a wheelwell caused by a hydraulic line being broken by a tire explosion.

It is not hard to "dry" compressed air.

 

I lived on the USS Nimitz for 4 years and learned there are so many uses for N2 on an aircraft, main reason is that there is no moisture or oil in it, secondary reason is that the molecule is more consistent than any other combination of molecules including dry air. N2 was used in all Navy aircraft for tire inflation due to the extreme temp change when at high altitude then suddenly landing, also used for the tail hook actuator when hydraulics fail, used in side winder missile actuators and other ordinance operations, the list goes on, but you get the point. I wouldn't pay someone to put N2 in my automobile tires, but if I had an aircraft, you better believe I'd pay. Especially if it's the difference in my tire exploding upon landing.

 

Thats exactly what they did to my tires.