Originally Posted by
FBinNY
You're already using an 80% nitrogen mix. Since the Oxygen bleeds through faster (in theory), you'd be selectively replacing the lost oxygen with the 80/20 mix and after a few bleed and pump cycles would be riding on almost pure nitrogen anyway.
This is correct. N2 concentration will asymptotically approach 100%.
I don't believe there is an advantage using N2 but if I did I still would not do it. It takes me perhaps 3 minutes to bring my tires back up to pressure. Assuming that I did that daily that would be 18 minutes per week. If N2 required pumping only have as much, I would save 9 minutes per week. That's about as long as the time I spent reading this thread. Geez!