Nitrogen In Tires - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 17 (permalink) Old 09-17-2009, 05:13 PM Thread Starter
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Nitrogen In Tires

I have heard about replacing the air in the tires with nitrogen. Anyone done this, or anyone know of pro's and con's? Thanks.

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post #2 of 17 (permalink) Old 09-17-2009, 05:16 PM
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I have heard about replacing the air in the tires with nitrogen. Anyone done this, or anyone know of pro's and con's? Thanks.
Mostly bunk and BS. The only real advantage is the nitrogen will slow down the oxidation of the rubber material. Useless unless you keep the tires 10 years. All the rest is just hype to sell you something that is already 79% of the atmosphere. GOOGLE it..
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post #3 of 17 (permalink) Old 09-17-2009, 05:16 PM
is here and there.
 
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I was reading this the other day.

http://www.thetruthaboutcars.com/the...with-nitrogen/

I guess you really need to make up your own mind on what to believe.

Life changes, so roll with it, not against it.
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post #4 of 17 (permalink) Old 09-17-2009, 05:23 PM
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I just put Nitrogen in my tires about 6 months ago, as did my boyfriend, and so far the tires have maintained their pressure a lot better (a lot less of loss) so less air fill ups. I haven't noticed a real change in gas mileage yet, but my boyfriend says he gets better mileage from it.

Ultimately its up to you
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post #5 of 17 (permalink) Old 09-18-2009, 01:04 AM
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Got nitrogen in my 37's and they don't loose pressure like they did with "air". It can't hurt and it is done for free at my Ford dealer.

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post #6 of 17 (permalink) Old 09-18-2009, 06:05 PM
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its not as effected by heat... thats why race cars use it.... so will it help you... maybe necessary.... no

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post #7 of 17 (permalink) Old 09-18-2009, 07:11 PM
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its not as effected by heat...
Ummm--yes it is. Nitrogen is not immune to any of the laws regarding behavior of gases, the main one being pV=nRT. N2 WILL expand and contract under temperature changes, just like any other gas will.

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post #8 of 17 (permalink) Old 09-19-2009, 12:50 PM
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its not as effected by heat... thats why race cars use it.... so will it help you... maybe necessary.... no
please read before you call BS

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post #9 of 17 (permalink) Old 09-19-2009, 01:05 PM
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No, jvencius was 100% correct, nitrogen and air respond to heat in EXACTLY the same way, there is no difference at all.

What no one has mentioned was the REAL reason race teams and aircraft use N2 as opposed to compressed air, you know the answer, but just never thought of it....

When you compress "air" and inflate a tire with it, what else is in there? (hint, you need to drain it every so often)
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WATER vapor!

N2 is VERY low in moisture, and THAT is what causes the difference in heat response between N2 and "air" filled tires. With a GOOD moisture capture system, you get exactly the same results with N2 as with DRY air.

"Air" is 78% nitrogen and 21% oxygen, both molecules are effectively the same size, so your tires won't show leakage rates different with N2 than with air. In fact, it's the oxygen that leaks out because it's ever so slightly smaller. So if you lose 21% of your air (78% remaining) and you refill with 78/21 you are end up with 78% + 15% = 93% N2.

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post #10 of 17 (permalink) Old 09-19-2009, 03:32 PM
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Quote:
Originally Posted by John_G View Post
No, jvencius was 100% correct, nitrogen and air respond to heat in EXACTLY the same way, there is no difference at all.

What no one has mentioned was the REAL reason race teams and aircraft use N2 as opposed to compressed air, you know the answer, but just never thought of it....

When you compress "air" and inflate a tire with it, what else is in there? (hint, you need to drain it every so often)
..
.
.
.
.
.
.
.
.
.
.
WATER vapor!

N2 is VERY low in moisture, and THAT is what causes the difference in heat response between N2 and "air" filled tires. With a GOOD moisture capture system, you get exactly the same results with N2 as with DRY air.

"Air" is 78% nitrogen and 21% oxygen, both molecules are effectively the same size, so your tires won't show leakage rates different with N2 than with air. In fact, it's the oxygen that leaks out because it's ever so slightly smaller. So if you lose 21% of your air (78% remaining) and you refill with 78/21 you are end up with 78% + 15% = 93% N2.
If that is the case... As you are saying the most technology advanced form of motorsports still requires the use of N2.....and I think they know how to change a dryer system.

It all comes down to thermal expansion for Nitrogen vs (Hydrogen, Nitrogen, Oxygen and Argon) common name Air http://wiki.answers.com/Q/What_is_th...formula_of_air

I wonder which would be more linear for expansion...


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