The Discovery Channel did a segment explaining why N2 is better. This page
has a link to the segment:

http://www.getnitrogen.org/

Basically, it leaks more slowly and preserves the rubber.

--
Best Regards,
Mike

http://photoshow.comcast.net/mikenoel


"Ray Andraka" wrote in message
...
Morgans wrote:

Have you adopted the use of nitrogen for filling your tires?

Why, what does that do for you? Air is 78% N2, and 21% O2. The O2 is a
bigger molecule than N2, so I wouldn't expect to see any difference in the
leak down. The only benefit I am aware of relates to tire fires in
airplanes that go much higher and faster than our spam cans.

It would be an interesting science fair project for a suitably inclined
middle school student though!