Originally Posted by NeverEnough
Nitrogen Molecules are also A LOT bigger than Oxygen, so it won't leak out over time. We all know if you don't put air in your tires they will go flat eventually. Nitrogen doesn't.
This is true, I have been using Nitrogen in my tires for about a year now...the real benefit (for me) is that Nitrogen is more temperature stable. That pesky TPMS light does not come on anymore when there is temperature drop.