Inflation gas?

ChrisSlicks · 05-15-2009, 09:46 AM

Quote:

Originally Posted by FlashBazbo

35 psi is the measure of pressure, not of weight. 35psi air weighs the same as 10 psi air.

The higher the pressure, the more molecules are crammed into the same space, so the higher the weight. But air is so light, at standard pressure is weights only 0.08 pounds per cubic foot, so there wont be a measurable weight difference in the tire. If you had monster truck tires with a volume of 15 gallons, you would add about 1 pound if you pumped them to 100 psi. There will be no significant weight difference with any other gas.

Vs dry air, nitrogen is going to respond to heat at about the same rate as air. As temperature increases, the gas will try to reduce it's density, which when inside a fixed size volume (for arguments sake) will increase its pressure. The water vapor may respond at a different rate, so that may be the only significant difference.

Perhaps there is benefit to aging, but most tires I've seen crack up on the outside first due to the sun cooking the oils out of them.