Originally Posted by palexfire
use nitrogen instead of air!
its about $10 dollars.
nascar uses it it keeps the tire from expanding holds psi at same psi for a longer time than air.
Not gonna help if you have a slow leak...nitrogen has nothing specifically to do with the "time" that a tire will hold a certain pressure level...it has to do with temperature sensitivity. Nitrogen is good for race tires because it's pressure doesn't vary with temperature the way "regular" air (which has a lot of water vapor in it) does...therefore as the tire heats up under race conditions, its pressure doesn't change as much as it would with plain ol' air.