“I hear tell that nitrogen is more stable than fresh air during temperature changes to pressure.”
1. Fresh air is MOSTLY nitrogen.
2. Please review Physics 101.
“That’s one reason we are seeing it used more often in vehicle tires.”
The reason we are seeing it more is MARKET HYPE.
“That’s one reason we are seeing it used more often in vehicle tires.”
Oh crap. I forgot to bring my car in to switch over to winter air!
It’s important in racing because the nitrogen from a tank is dry, and there’s less variability in the temp vs pressure curve. But that’s a deal where half a psi can be felt in the handling of the car.
I agree for a football no big deal.
Granted, for your normal passenger vehicle, nitrogen would seem overkill. But pure nitrogen in your tires will help to keep your TPM light from coming on every time the temp drops dramatically (such as in certain climates). But the savvy physicists who race cars, or fly airplanes, will certainly opt for nitrogen over air in their tires. Not to mention that your “air”, while mostly nitrogen, oftentimes will also come with moisture included. If they were to use compressed air, like from your garden variety air-compressor to inflate a football, would it be possible for the additional moisture to settle and freeze, while the ball sat on the sidelines, thus creating a wobble?