Seeing as regular air has 78% nitrogen,.. and theoretically the oxygen leaks out faster than the nitrogen,... if you're tires are more than a year old, I'd guess they're mostly nitrogen by now anyway...
Dang Rowboat! I knew it was in there, I didnt know it was such a big part..
Air contains roughly 78% nitrogen, 20.95% oxygen, 0.93% argon, 0.038% carbon dioxide, trace amounts of other gases, and a variable amount (average around 1%) of water vapor.
Read more:
http://wiki.answers.com/Q/What_percentage_of_each_gas_is_in_the_air#ixzz27EZf...Weve got more argon that CO2! .038% CO2,, but thats the one thats got everyone all skeert,, Hmmm..
Ohh well,,
Your thinking is golden, refill a slow leak 5 times & there otta not be much in there but nitrogen,
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You'd think my slow leak in the front tire would have gone away by now... with all that nitrogen in there...
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