Quote Originally Posted by mey0r View Post

THE SCIENCE

Because nitrogen molecules are slightly larger and less permeable than oxygen and all the other gases in air, it migrates considerably slower through a tire. It might take a truck or bus tire inflated with nitrogen about three months to lose two psi, whereas even a well-maintained tire inflated with compressed air will lose, on average, about two psi per month.


Your scientific premise is seriously FLAWED. How could Nitrogen be larger than Oxygen when its atomic Weight and Number are lower? Check this Periodic Table.

After Oxygen, the next most common gases in air are Argon (Atomic No. 18) and CO2 (even bigger than Argon).

If I were your professor, I'd give you an F for b#%sh^ting.