You are right. We spend our money on things that we want. I wanted free roadside assistance, and all the other benefits and $40 doesn't seem unreasonable to me. I went to Scotland a few years ago and gas was crazy expensive, but train rides were cheap. It's different here.

 

Nothing against you James, but I think Nitrogen is for lazy people. We do air checks for free for anyone, but hardly anyone takes advantage of it. The only benefit is what you see by no change in pressure that's it. I'll check mine weekly before I pay for it......hell normal air we breathe has about 80% nitrogen anyways.....

 

I know you didn't just call me lazy friend.

 

Scientist coming out in me.......Good point that air is 80% nitrogen, about 19% oxygen and the rest trace gasses. The only thing that I coulld see happenning is that the oxygen is reacting with the tire material and thus causing a reduction in the partial pressure of the gases in the tire. Nitrogen is actually a slightly smaller molecule than oxygen so I don't think it is a diffusion differential.

Just found this interesting article:Nitrogen in tires

 

That's good. Thank you for your post.

 

Im a service adviser for Hyundai and I get it for free...
yup yup
a lot of my people at work put it in there bikes...

 

Ahhh I see! Wish I lived near Tampa.

 

if you read the article you posted, you would have read that "nitrogen molecules
are considerably larger than oxygen molecules, so they don't permeate a tire nearly as quickly."

 

Yes....i saw that. However the atomic weight of Oxygen is actually greather than that of nitrogen. Helium for instance is a much smaller atom and has a smaller atomic weight therefore it it is difficult to seal against. (rolex submariners watches can keep out water to incredible pressures but must have a relief vent to let diffused helium out of the divers watch during saturation diving)

I am afraid my physical chemisty is a little weak after 25 years. I will do further research.

Just a thought, if you pumped up your tires with neon, you might be able to get your tires to glow.

Time to go....mind is rambling.

 

I wonder how neon would affect handling?