Short Bus wrote:Air has a high percentage of Nitrogen
Nitrogen molecules are bigger.
If Nitrogen will not leak out of small leaks then fill with regular air and the leak should stop becuase only the oxygen will leak out leaving behind the nitrogen.
I have never seen a tire heal it's self in this manor.
No, I wouldn't expect it'd heal itself. The O2 continues to eat at the metal/bead contact area constantly creating more and ever bigger corrosion zones. Eventually all components of air will find its way out if the problem is left unabated.
N2 would be best for new to slightly used wheel assemblies. No corrosion gets a foothold, less problems as the wheel ages. Once the corrosion begins, it has to be eliminated and sealed to stop it. Otherwise, it becomes a maintenance thing especially with Al alloy rims. I don't think N2 preserves the tire as much as it does bead integrity.
I've never personally paid extra to fill with N2. I have an air compressor. If I was set up to fill N2, I'd use only N2, even if compressed air was just as handy. I've had aluminum rims on my vehicle since new in 97. For the last ten years I've cleaned the rim bead three times and it just keeps getting worse. It's not a matter of letting it sit either - she's got 241,000 on the odo.
I'm checking tire pressure and refilling about every two weeks. If I could rewind time, they'd be filled with N2 from the get-go:(