Sorry, I meant tires. Anyone?
It's not the extra nitrogen that makes the difference, but the lack of oxygen. Oxygen compounds, and particularly it's derivative Ozone, have a tendency to break down rubber leading to shorter life spans for tires. This is one of the reasons that old tires crack and blister (the other reason is UV radiation). By filtering out the oxygen from the inside, the tire deteriorates less quickly. There is also the thermal expansion benefit. Pure nitrogen expands and contracts less than the nitrogen/oxygen/C02 mixture that is normal air. Therefore you get more consistent tire pressures.tedesco886 said:Think of one thing.....when using compressed air to fill tires, it has the same chemical properties as ambient air.......which is about 80% nitrogen anyways, c'mon now, you're going to tell me that the extra 20% is going to make a difference?