Quote Originally Posted by chuck
also a bit late but what you may have heard was the twisted story of people putting nitrogen in their tires, this is a new thing shops are doing, the nitrogen doesn't expand or contract as much as regular air with the hot and cold seasons so the only time you have to adjust your tire pressure is when you loose air...but i dunno what or where you heard the helium thing


The whole thing with Nitrogen is that the molecules are larger than that of air. Thus making it more difficult for the porus compound of a rubber tire to leak. Yeah there are supposedly more benefits than that but that is the biggest difference.