[tophcfa]

Originally Posted by Topspinmo

Temp changes and time affect tire pressure unless you’re tires are filled with nitrogen. Why you should check tire pressure monthly. Try to find gauge that least reads in 1 pound increments. Even then they came be two pounds off minimum. I found for my cart tires the sweet spot 26 PSI. They heavier or lighter the cart it may vary few pounds and Of course the type to tires on the cart>

Originally Posted by tuccillo

No, that is not exactly true. The ideal gas law still applies. "Air" is 78% nitrogen. The nitrogen or "air" in your tires will respond to temperature changes the same. However, nitrogen filled tires may have less evaporated moisture than "air" filled tires and this can contribute to somewhat reduced pressure changes with temperature changes. It depends on the ambient dew point when the tires were filled. Regardless, it is not worth worrying about for non-racing applications.

Could somebody please forward the above to Roger Goodell : )