I'm actually going to disagree about a nitrogen fill not being worth it. Nitrogen is a far more stable gas and doesn't expand and contract under temperature changes nearly as much as standard air does. Oxygen is rather volatile as far as temperature is concerned and even the approximately 20% oxygen in standard air causes noticeable pressure changes in tires (which our cars don't seem to respond well to). The nitrogen fill isn't about a weight savings or eco friendliness, it's about maintaining a constant pressure which is good for tires... and the fact that it is less prone to slow leaks.
Big waste of money. Seriously, it's not like were running F1 here.
You will never notice a thing.
It isn't ment to be "Noticed". It is ment to increase tire, rim and valve life. It is a much more stable gas than compressed air and does not fluxuate on temp changes. For 25 bucks I think it is s sound investment.
You guys should check and make sure that the rims and tires are clean and free of any damage on the examples you are using for the nitrogen filled tires. If nitrogen was more prone to leaking then you should see a larger volume of leakage from the same setup when the nitrogen filled tires are filled with standard air. The aprox 20% oxygen in standard air has a far greater expansion rate and would put more stress on the tire, opening up the point of escape more, allowing even more nitrogen to escape if it was truly only the nitrogen (the other aprox 78-79% of standard air) that was getting out. That is unless the oxygen formed some sort of barrier along the tire (which it doesn't) or the aprox 1% trace gases also in standard air are some amazing element(s) I have never come across.idk bout all that cuz Im majoring in chemistry and we were studing nitrogen filled tires and its really not worth it like posted earlier air is 79% nitrogen and also our study showed that tires that are filled with pure nitrogen has a higher tendency to leak out faster from the tires then just putting in air