Originally Posted by deadsp0t
Race teams world wide have proven the temp fluctuation is very minimal at best. Even in a motorcycle race tire that gets extremely hot.. 5* max.. If you get it free and free refills go for it. If you have to pay you'll be throwing money away.
Without nitrogen my tire psi fluctuated 10-15 psi every two months and with nitrogen my tire psi is minimal of 3-5 psi every six months.
I would definitely not pay $30-40 a tire fill for nitrogen. I get it for free and it's a plus.
I say to anyone out there...try it if you can get it for free and you decide?