Originally Posted by Ganaraska

"I also inflate the tires on my vehicles with Nitrogen as opposed to air, because it allows tires to run cooler at sustained high speeds"

This is pure bull****. Nitrogen does nothing for keeping tires cool. It also does nothing to control expansion pressure, unless you have found some way to repeal Boyle's Law. The reason racers use nitrogen is because you can buy a cylinder of nitrogen @ 2000 PSI for $30 at any welding supply dealer, and it will take the place of an air compressor at the track. One cylinder will last a weekend racer a full season of inflating tires, cleaning parts, even running air tools. It's purely a matter of convenience.