What does NITROGEN do? - DodgeIntrepid.Net Forums - Dodge Intrepid, Concorde, 300m and Eagle Vision chat
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post #1 of 16 (permalink) Old 02-04-2007, 11:21 PM Thread Starter
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What does NITROGEN do?

The place i'm going to get my new wheels/tires from puts NITROGEN in the tires for free..... I've never heard of doing this, so if someone can fill me in as to whats the purpose of this? and should i get it? I did do a search for NITROGEN and nothing came up.... Thanks
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post #2 of 16 (permalink) Old 02-04-2007, 11:34 PM
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its supposed to make the tires stay inflated longer, but idk if you knew this but the air you breath is like 91% nitrogen
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post #3 of 16 (permalink) Old 02-04-2007, 11:37 PM
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actually it's somewhere in the range of 70% if i'm not mistaken.
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post #4 of 16 (permalink) Old 02-04-2007, 11:40 PM
 
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Nitrogen is less proned to expand and contract due to temperature changes.

Therefore, your tires will stay closer to its optimum tire pressure when it gets hella cold or when it gets hella hot.

It's a good thing, just go with it.
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post #5 of 16 (permalink) Old 02-04-2007, 11:43 PM
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And to clear things up, air is roughly 80% nitrogen and 20% oxygen with trace amounts of other gases in there too.
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post #6 of 16 (permalink) Old 02-05-2007, 12:25 AM
 
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also nitrogen will have less moisture so if you have steel rims they will be less likely to rust.
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post #7 of 16 (permalink) Old 02-05-2007, 12:26 AM
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Quote:
Originally Posted by smc1377
Nitrogen is less proned to expand and contract due to temperature changes.
Technically, yes... but the expansion/contraction difference between 80 and 100% Nitrogen is too miniscule to notice. ...and it's not like they evacuate the tire prior to filling, that leaves 1 tire volume of 'air'.

Race teams took to using bottled gas rather than lugging a compressor everywhere (and the associated maintenance). Bottled gas is dry and a 'T' bottle of Nitrogen is pretty cheap and goes a long way too.

There was a long debate about this @ www.eng-tips.com The final outcome was that the advantage is really in it's ease of use. There's no real calculable benefit in the tires.

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Last edited by CDN R/T; 02-05-2007 at 12:28 AM.
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post #8 of 16 (permalink) Old 02-05-2007, 02:30 AM
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There are a lot of tire places that use machines that actually do evacuate the air from the tire before they fill it with nitrogen, this is why at those places you pay $80 to get it done. If they evacuate the air and whatnot you should get better gas mileage but I'm not an expert on it.
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post #9 of 16 (permalink) Old 02-05-2007, 02:40 AM
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My problem with paying for nitrogen is when you need a fill up. If I have a compressor at home. Do I stop using this to fill my tires and pay every time the tires get low?

However,
"Nitrogen is denser than Oxygen: This means the larger molecules escape less easily from tires resulting in a more gradual loss of pressure over time. According to a Michelin Tire Manual, a tire that is inflated with Nitrogen loses its pressure 3 times slower than if it were inflated with air.
Nitrogen provides longer tire life: Nitrogen inflated tire run cooler and require less maintenance according to a Goodyear application bulletin."


Last edited by Duds; 02-05-2007 at 02:44 AM.
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post #10 of 16 (permalink) Old 02-05-2007, 08:07 AM
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And when you get bored you can fill up a balloon with the nitrogen in your tires and have a good time(I wouldn't really do this unless you don't have a need for your brain cells).
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post #11 of 16 (permalink) Old 02-05-2007, 08:14 AM
 
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Quote:
Originally Posted by Dudley
However,
"Nitrogen is denser than Oxygen: This means the larger molecules escape less easily from tires resulting in a more gradual loss of pressure over time. ."
You got that backwards. The denser a material is , the smaller are the molecules, wich in the case of metals (much denser that air) they're single atoms. I think this is just another hype wich will wear off . As it was stated earlier there's no real advantage other than being practical or convenient.
I would never pay 80 shells to get my tires filled with something that's free for everyone to use in the atmosphere, that's just ridiculous, just like the gains they claim. This is just one of those marketing scams like the Vortex, Electrical superchargers, Magnetic fuel atomizers that you clip on your fuel lines ......Puhhhlease give me a break...

Last edited by TERMINATOR101CA; 02-05-2007 at 08:21 AM.
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post #12 of 16 (permalink) Old 02-05-2007, 08:57 AM
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I would just get the new setup with the nitrogen in them from everything that I have read it is the way to go and the Dodge dealerships (at least locally) are starting to sell the new vehicles with nitrogen inflated tires.
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post #13 of 16 (permalink) Old 02-05-2007, 09:46 AM Thread Starter
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Great info guys.......... Thanks Pos rep for everyone!!!!!!!!!!!!!!
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post #14 of 16 (permalink) Old 02-05-2007, 01:03 PM
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Quote:
Originally Posted by popimp
And when you get bored you can fill up a balloon with the nitrogen in your tires and have a good time(I wouldn't really do this unless you don't have a need for your brain cells).
Nitrogen is inert, breathe it all you like (you may be thinking of Nitrous-Oxide).
Don't forget, you're breathing 80% Nitrogen right now !!

Terminator's right too, denser gas means smaller molecules.
Quote:
Originally Posted by Dudley
According to a Michelin Tire Manual, a tire that is inflated with Nitrogen loses its pressure 3 times slower than if it were inflated with air.
Is there an online source for that ?? Hmmm a 25% increase in Nitrogen = 300% performance increase ?? (might be time to invest in a Hydrogen Booster).

If Oxygen so freely spews out of your tires, wouldn't you be left with pure Nitrogen after a few top ups ?

No-one's mentioned yet, the tires oxidizing and rotting from the inside out. Inert gas would prevent this (if it were a realistic threat).

A group of engineers went at this problem from all angles and couldn't find ANY benefit to the end-user. As a matter of fact, I went back to trace the conversation and found the thread deleted (no scientific substance).

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post #15 of 16 (permalink) Old 02-05-2007, 01:07 PM
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Isn't this a mythbusters topic?

If not it sounds like a good one to submit to them.

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