This is an exellent mod. Nitrogen, simply has no moisture in it. This has much to do with the air pressure gain you get from heat build up. When I'd go drag racing my tires would change 4-5 psi as they heated up. I have a smart tire system and you can watch them change. Weather is also a factor in psi change. 1lb per 10 degrees usually. I hate it when my air pressure is all over the place. Nitrogen will not do this. I think it may also help keep the tire temp more stable, as moist air may create more heat.
Nitrogen is cheap, safe, and simple to use in the tires. By a small air tank to keep around for topping them off once in a while.
All race cars use this, and seems like I heard the Lexus rodster comes fac. filled with nitrogen.
Skip White
ps, redsled's correct about there being no difference if feel, unless you've been adding air to the tires that's loaded with moisture.
ps, hey my car doe's run better after a good wash.
