John Stahmann

Please, what are those benefits? I'd love to hear them.

Reggie

1. Better heat retention (denser)
2. No oxidation
3. No mositure (very key issue - but not as much here in CO)<ul><li><a href="http://irgaragesolutions.com/n2/">Info</a></li></ul>

Reggie

<ul><li><a href="http://www.talontire.com/nitrogen.html">More info</a></li></ul>

hotani

As opposed to a wet gas.

Sorry, that cracked me up. :-)

John Stahmann

1. Better heat retention (denser)

Air is 78% nitrogen, N2, and 21% oxygen, O2. So even if you put air in the tire, it's already 78% nitrogen. Many of the nitrogen generators don't produce much more than 90% nitrogen.

2. No oxidation

When is the last time you saw a tire destroyed by oxidation from the inside? More often a tire is worn out by wear, sidewall cuts, etc.

3. No mositure (very key issue - but not as much here in CO)

How is this a key issue? I have even heard the argument that aircraft use nitrogen because of the moisture. I can understand that an airplane is going through extreme changes in temperature and the landing gear could still have frozen water in them when landing if there were water in them causing a potential out-of-balance situation, but I've never heard of anyone having a problem because there was moisture in their tires.

Do all these nitrogen machines suck out all of the ambient air before filling them with nitrogen?

hotani

<i>Do all these nitrogen machines suck out all of the ambient air before filling them with nitrogen?</i>

I think that is the idea: the N is forced into the tire and on wheels that are equipped with two valve stems, the amient air is pushed out. Not sure how it would work with a normal wheel with one valve stem.

Reggie

John - moisture in the tire will expand at a higher rate. That is the main reason the race car teams use N2

The oxygen is a real issue getting into the tire if you keep your tires a long time - I am running tires from 1999 so if I had the chance to use N2 I would.