Nitrogen and Run Flat Tires

[BLACK MOON]

I've been in automotive repair/tire business for about 20 years mostly dealing with Goodyears. The only reason I've ever heard about running nitrogen in tires was because it doesn't heat up after driving like air does. IOW, tire pressure remains constant no matter how far you drive. Am I missing something here?

Not sure what you're looking for but the benefit you just mentioned would relate to mileage, wear and handling improvements by keeping the temperature and pressure consistant. I believe that's 'their' biggest marketing point.

 

[Bioscache2]

Temp and pressure will stay just as constant with dry air versus nitrogen

 

[fdxpilot]

Temp and pressure will stay just as constant with dry air versus nitrogen

I've gotta agree. Unless your nitrogen has somehow broken the laws of chemistry, thermodynamics, and physics, it will increase and decrease pressure with temperature. It might do so less than water vapor, present in compressed air, but it will change. And for those who say it is used in aviation because it doesn't change pressure, that's bull. Every pressurized container on my jet, Oxygen, Halon, Nitrogen, and Air, is listed at a nominal pressure at 70deg F and a correction for changing temps. N2 might delay oxidation on the inside of your tires, but if you keep tires long enough to make a difference, you aren't driving your vette nearly enough.