My understanding is that main benefits to running nitrogen is that its pressure doesn't fluctuate as much. I just remember a story about the new Nissan GT-R. The tires come filled with nitrogen stock, and some reviewers had a scare when a tire blew out at 180 mph. It turns out that they had replaced the tires, but used regular air instead.
I've never heard about the oxygen/ozone concern.
__________________
|