[Myron Piatek]

Now that I think about it, I couldn't help but wonder...... "How" does it make the tire run cooler? The same amount of burnout heat will not cause the nitrogen to expand as much as regular air. So one may need to start out with more nitrogen pressure in the slicks to provide the optimum established contact patch after the burnout.

The only way I can think of nitrogen helping a tire appear to run cooler is that if it does not absorb heat as much as regular air, so pressure doesn't go up. But the actual rubber temperature would still seem to remain the same.

After doing some research on the net, it seems nitrogen may be better in certain applications, but for different reasons. Might not be worth the trouble as long as you check your tire pressures anyway. Even if nitrogen doesn't seep as much as air, keeps pressures more consistent and may be less corrosive due to a lack of humidity and oxygen, one still needs to check tires for air seepage/loss due to punctures!