Originally Posted by One-Bad-SS
Are you telling me our cars tires come nitrogen filled? Or did you have them filled?
Maybe his dealer put it in. I think mine did because the stems have a green cap.
I don't think you could do it unless you had a nitrogen tank. The tire places have a machine that removes the O2 from the air. It's too much trouble to go to a tire store and have them put air in, so I've decided nitrogen is more trouble than its worth.