Rocket-J

How many run Nitrogen in your Vette tires? Do you see any difference?

PaulB

I have had in my 09 for 2 years now. The air pressure does not fluctuate as much when there is nitrogen v the regular air...

CaryBob

I'm sorry but I can't resist chiming in that I like to run around 78.09% nitrogen in my tires. I wouldn't think there is much practical advantage to going to 99% but I'm very curious about the answers you get to your question.

KenHorse

I get it

FortMorganAl

It isn't the nitrogen that makes a difference. It is water vapor in the tire. Nitrogen isn't magical. It can't violate the ideal gas law. PV=nRT works for nitrogen as well as a 78% nitrogen, 21% oxygen mix we commonly call air. But water vapor has a habit of condensing into water droplets and then evaporating again. Water vapor takes 11,000 times the volume of the same amount of liquid water.

People think nitrogen works because nitrogen is extracted from air leaving behind all the other gases including water vapor. No water vapor = slightly less pressure change. Now the real question is, how much pressure change is bad? The answer is, there is no significant difference in practical application.

BTW, do a search.

crazyeddie

I knew thateddie

PaulB

As I said in Post 2 I have noticed less of a fluctuation with the nitrogen. With regular air I could see 4 to 5 lbs difference in the air pressure. Now, with the nitrogen, I only see 1 to 2 lbs air pressure difference. I am not knowledgable in the laws of gas. Maybe when my dealer extracted the air before they put in the nitrogen, maybe, they were good at whatever they did...

Coolness

Thanks, I needed a laugh tonight!

calemasters

Here is the "special" gas mix that I use:

Gas Volume
Oxygen 20.95
Nitrogen 78.09
Carbon Dioxide 0.03
Hydrogen 0.00005
Argon 0.933
Neon 0.0018
Helium 0.0005
Krypton 0.0001
Xenon 0.0000009

RedVette84

You would have to pull a vacuum on the inside of the tire to get anywhere near 99%. You are introducing nitrogen into a tire with reg air (of course 70 some % nitrogen) so you will never get the level up that high. I agree with the moisture free statement being the biggest variable. You could also mount the tire in a nitrogen pure enviroment. I think the tech might pass out in a short time.

CaryBob

PuridgeN98 claims to give 98%, which approaches 99% .

jackhall99

Everyone will have their own opinion, but nitrogen in street tires produces little benefit; slightly less loss of air, but that is quite minor.

The greatest benefit is the elimination of the 1% water vapor. However, in street tires driven frequently that is of no concern. If you park your car for an extended period, there may be a nominal value.

George's_Vette

I've seen some newer car rims that are equipped with two valve stems 180 degs from each other. Designed to permit the exchange of atmospheric air with Nitrogen to permit a more complete charge to the tire/wheel assembly with pure or near pure nitrogen.

George

Vette_DD

http://forums.corvetteforum.com/c6-c...for-tires.html

http://forums.corvetteforum.com/c6-c...-in-tires.html

http://forums.corvetteforum.com/c6-c...our-tires.html

http://forums.corvetteforum.com/c6-c...eir-tires.html

http://forums.corvetteforum.com/show....php?t=2107673

http://forums.corvetteforum.com/show....php?t=2104186

http://forums.corvetteforum.com/show....php?t=2043592

http://forums.corvetteforum.com/show...light=nitrogen

http://forums.corvetteforum.com/show...light=nitrogen

http://forums.corvetteforum.com/show...light=nitrogen

http://forums.corvetteforum.com/show...light=nitrogen

http://forums.corvetteforum.com/show...light=nitrogen

PatriotZ

.....Nitogen...if you can get it free.....like Costco.....and it is convenient......it does no harm.... and, as many have stated, the air pressure doesn't flucuate as much.
I would also agree that other than the flucation in air, there really isn't much noticeable difference
Lots of viewpoints here....but that is why they make Fords and Chevys.......BTW I use it for the posted reasons.....but if I had to pay for it each time.....I would do like the 78% er's

fnsblum

The racers use it because they don't want to deal with that fraction of 1% vapor when the tires heat up. Has nothing to do with oxygen. They are trying to build as little as an 1/8" of stagger in the vehicle. A drop of water when heated to a vapor will expand 1600 times but it is still less than 1% of the total makeup. Sounds like splitting hairs. Later! Frank

Rocket-J

Thanks Guys. I knew I would get the whole spectrum.
And Yes, Racers do go to extremes for extreme reasons.
When I got my first car with tire pressure monitors, I found as much as 7-8 lbs difference in cold to hot tires. Night temps from low 60's to day temps over 100.
MY GS came with Nitrogen in the tires. The dealer did it. I would not order it except for road racing. Having changed a bunch of tires in my life, I would think it very difficult the perdge air out to get near 100% Nitrogen. But racers do it.

Vette_DD

You've got a problem with your tires in those 2 cars. From about the 1st of April, through the end of October, my 08 Vette tires NEVER need air. For winter use, I have to add about 3-4 pounds, then no more maintenance until spring.

I wouldn't have a problem using nitrogen in the tires if:
1. I was getting the nitrogen fill free.
2. There were multiple places I could have nitrogen added free if needed.

I refuse to pay for air for the tires if I don't have to.

thechief

Nitrogen + $$ = scam

johnodrake

I guess Boyle's law is not applicable to Nitrogen filled tires.