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Old 13 February 2012, 03:53 AM
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Originally Posted by ghostwaste View Post
Consumer Guide did a test on this. They left one tire inflated for a year with air, and one with Nitrogen. The tire filled with air had leaked out about 4psi, and the Nitrogen tire leaked out about 2psi. Not much of a difference, especially for a year's span of time.
That lines up with my experience. Leaking out at half the speed seems like enough of a difference to me. When I last bought new tyres, they put nitrogen in them without consulting me. I was annoyed at first, but I follow their instructions and go back once every 5-6 months for a free top up. Whereas previously I was getting my hands dirty every 2 months or so.
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