"but I suspect the advantage of nitrogen is that it is nearly inert and
would reduce the aging (oxidation) of the rubber."

The tires are worn out so fast from multiple landings (commrcial airliners)
that wear necessitates changing them long before oxidation would occur.
After 19 years in the airline business I never saw maintenance crews top off
air in tires with anything but a simple portable compressor. Sure is
Fryedaye.
Bob

http://groups.msn.com/BobsPhotoShare

_________________________________________________________________
MSN Photos is the easiest way to share and print your photos:
http://photos.msn.com/support/worldwide.aspx