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-   -   Nitrogen In Tires (https://www.kia-forums.com/suspension-wheels-tires/54599-nitrogen-tires.html)

davidkbrown 10-15-2009 08:03 PM

Nitrogen In Tires
 
The tire dealers and garages are all pushing Nitrogen in tires as a great thing. Don't get caught in the hype. I was at a tire dealer recently where they were pushing nitrogen, by saying that Nitrogen is thicker than air, so it doesn't leak out of the tire as readily. You alsoo get less variation due to temperature fluctuations.

Keep in mind the following:
Air is 78% Nitrogen: So how can the other 20% have such an effect.
Density of Air and Nitrogen are almost identical. About 2% different
Viscosity of Air and Nitrogen are almost identical
The Thermal expansion coefficient of Air and Nitrogen are identical
The only difference is that they will charge about $5/tire for Nitrogen. Air is Free

I spoke to mechanics at the dealership, where I drive the shuttle and was told this was all snake oil.

Don't waste your money.

jfabia 10-16-2009 01:18 AM

This is the first I have heard of tire deals pushing nitrogen.
I am in the aviation maintnenace field and we use it in aircraft tires, mostly because it contains less moisture. Less moisture means less corrosion on the rim and no water particles freezing at altitude. As for vehicles I do not see any advantages.

davidkbrown 10-16-2009 07:36 AM

Quote:

Originally Posted by jfabia (Post 263028)
This is the first I have heard of tire deals pushing nitrogen.
I am in the aviation maintnenace field and we use it in aircraft tires, mostly because it contains less moisture. Less moisture means less corrosion on the rim and no water particles freezing at altitude. As for vehicles I do not see any advantages.

I suspect that the aviation industry is where this whole concept came from. As for moisture, any ice or moisture, even in a Canadian winter would be minimal and would turn back into water vapour, in most cases, when the tires warmed up. The temperature extremes in a plane are much more dramatic.

The mechanics said that they would likely top it up with air anyway, if the pressure dropped a bit.

Thanks for the insight.

Matemorh 10-16-2009 07:42 AM

Quote:

Originally Posted by davidkbrown (Post 263007)
The tire dealers and garages are all pushing Nitrogen in tires as a great thing. Don't get caught in the hype. I was at a tire dealer recently where they were pushing nitrogen, by saying that Nitrogen is thicker than air, so it doesn't leak out of the tire as readily. You alsoo get less variation due to temperature fluctuations.

Keep in mind the following:
Air is 78% Nitrogen: So how can the other 20% have such an effect.
Density of Air and Nitrogen are almost identical. About 2% different
Viscosity of Air and Nitrogen are almost identical
The Thermal expansion coefficient of Air and Nitrogen are identical
The only difference is that they will charge about $5/tire for Nitrogen. Air is Free

I spoke to mechanics at the dealership, where I drive the shuttle and was told this was all snake oil.

Don't waste your money.

AMEN!

I never check the number but I was sure it was pretty close!
Tx davidkbrown to bring us some light!

vizunary 10-24-2009 05:35 PM

I was wondering this same thing, my dealer wants me to pay 99 for the nitrogen that was put in the tires in KOREA??? I'm about to go down and argue it out. hell, they also want to charge for the factory tint.

ninian 11-06-2009 01:16 PM

I refused to pay for the nitrogen, although I did end up getting nitrogen in my tires for free. (Im assuming wherever the dealer got the car from already did this).

danny t 11-20-2009 11:26 PM

i got the nitrogen in both 2010 rio5 and 2009 rondo we just bought. Can you add reg air to the tires if you have nitrogen? or do you have to "drain" the tires of the nitrogen first?

Danny

PLP 11-20-2009 11:37 PM

yes, you can add any amount of air in which actually you have 70% of nitrogen...
since you are here, fill out your profile, please.

kiaracer 11-24-2009 12:44 PM

Quote:

Originally Posted by vizunary (Post 264173)
I was wondering this same thing, my dealer wants me to pay 99 for the nitrogen that was put in the tires in KOREA??? I'm about to go down and argue it out. hell, they also want to charge for the factory tint.

none of these cars come from korea with nitrogen in them. they don't come with factory tint unless it's a suv or minivan such as the borrego, sedona, sorento, or the sportage. arguing probably won't get you anywhere because these are dealer add-ons, not factory so they can charge what they want.

lostsubaruguy 11-24-2009 01:15 PM

This is the biggest bunch of bull since Global Warming! How do you check to see if you truly have nitrogen in a tire anyway? I have some ocean front property for sale in Montana and mountain property for sale in Florida!


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