[razerwire]

I have a bottle of nitrogen in my garage, I use it to fill shocks on my buckshot sand car, but its used in tires also. Will not leak thru sidewalls as much as just air. Goodyear slicks are really bad. Big O tires in central calif use Nitrogen and will refill your tires for about 5 bucks I think. Also pressure will not change as much when tires heat up. Use in all my performance tires.