Hype or high performance? There’s probably a little of both when it comes to inflating your tires with nitrogen. The practice has attracted a lot of attention in the last few years as a way to maintain constant tire pressure, save gas and extend tire life.  But does it work?  We doubt it!  But this article tends to disagree with some ambivalence.

Inflated reputation? Nitrogen filling more tires, but its edge is debated