- Nov 8, 2011
Nitrogen is used for auto/bike tires and off road rock crawler adjustable shock absorbers because the molecules are larger than oxygen and leak out slower, granted air is 78/21 but it is used none the less, so you should be able to get this tank or one like it filled for " automotive " purpose
Nitrogen Shock Refill Filler Recharge Kit 600PSI Gauges Tanks Hoses Regulator | eBay
I don't know what's wrong with ebay, here's the search : Nitrogen shock refill filler recharge kit 600psi gauges, tanks, hoses, regulator
Red, the problem is that automotive nitrogen is in a gaseous form and not the liquid nitrogen that is used for medical purposes. Liquid nitrogen is COLD (-196 degrees f), which is why it can be used as a very good coolant for the diodes.