2010 Gen III nitrogen in tires

Any mix of air and Nitrogen is perfectly acceptable. Air itself is already 78% Nitrogen.

 

Well, sure, you could put air in... But why would you, when you could put Hydrogen in instead? After all, it lightens your car, improving your fuel efficiency! Better yet, it lightens the unsprung weight, so it makes a far greater difference than, say, replacing the cabin air (for the same amount of gas, anyway). As a bonus, if you get in a fiery crash, everybody will stop to watch, at which point they'll be basically obligated to help as long as they're there.

But if you insist, air will do just fine.

 

i hope you're kidding when you said put hydrogen, since hydrogen gas is flammable. The reason nitrogen air tires hold pressure better is because nitrogen is an inert gas, and since the atmosphere is already 78% nitrogen, leekage is very minimal.

 

:wacko:

 

Not sure what nitrogen in the tires has to do with leeks :noidea:

 

^^ Nitrogen has a lower diffusion rate than oxygen due to the concentration amounts in our atmosphere. So it doesn't leak as fast.

 

If the N2 was really 100% in your tires, but is only 78% in the outside atmosphere, then the N2 gradient would be greater (and the diffusion rate higher) than if the N2 was only 78% in the tires. :twitch:

 

He forgot to use the [HUMOR]...[/HUMOR] flags.

It helps control the onion smell. If you burn biodiesel the onion smell is actually a good thing.

You are talking about partial pressures. The diffusion rate through tires is so low that this makes no practical difference.

Tom

 

Proper procedure is checking pressure every week or two.
When you only put Nitrogen in, and keeping in mind that should be checked periodically, probably you will extend checking, which is bad.
IMO, air is totally acceptable, has been since hundred years. And N2 only for special services, like large trucks (rethreaded/regrooved eternal tyres), or airplanes.

 

It could make a Prius "Happy" if it hooked up with some of the O2 in the tires

 

A laughing Prius. I like that.

Tom

 

Perhaps you meant N2O?

 

All new cars have TPMS; it's required by law. Keep in mind that TPMS only reports a serious drop in tire pressure. You still need to manually check your tire pressure.

Tom

 

I use sulfur hexafluoride, to lower the center of gravity and improve stability.

:_>

 

The diffusion rate is lower. regular compressed air has oxygen. Nitrogen Molecules are much bigger than oxygen molecules. So, they will have a harder time squeezing through all the microscopic holes in the tires than would an oxygen molecule. That's the theory. Does it work like that in real life? probably not.

 

I'm guessing it has big molecules too.

 

If it does work like that in real life, every time you top you tires off and they bleed down a it you will have a higher percentage of N2 in the tires, so either:

1. The N2 peddlers are wrong about leakage rates.
or
2. They are correct about the leakage rates and after a few times of topping off your tires, the N2 purity in your tires will approach the N2 levels you get at the N2 machine in the tire store.


In either case, there is no reason to use N2 in your tires.

 

A good TMPS system will read out the pressure in each tire.