nitrogen

[mopar jeff]

One way to tell for sure is weigh a tire empty, then pump it up with air. See what the difference is. Probably not worth it, or everyone would already be on it. Since I had to add so much weight to my car, it definitely would never help.

[njk53]

Originally Posted by SSDiv6

Nitrogen does not have smaller molecules and it does not have anything to do with it. It is the chemical composition that is different. Nitrogen does not make tires run cooler. Nitrogen is an inert gas and non-reactive; it is a byproduct of a reaction.

Nitrogen inerting is used in aircraft to reduce the probability of residual fuel gases igniting in empty fuel tanks.

SSDiv6 I stand corrected. The molecules of nitrogen and compressed air are about the same. Actually the leak rate between nitrogen and compressed air @ 30PSI is very small.
I did some experimentation at work where I used Hydrogen that was mixed with a 5% solution of nitrogen that made it inflamable. That is how I got the two confused. The hydrogen solution would find a hole as small as 1 X 10 to the minus 6. My statement on Helium stands. It will get through a hole 1 x 10 to the minus 4.

[Keith 944]

nitrogen is clean ie. no water vaper, how much water passes from your air compressor into your tires? i personally do not know if this is a big issue or not, but i do know air compressors make a lot of water...