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Old 09-07-2016, 08:20 AM   #21
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Originally Posted by danielabram71 View Post
I am so sorry for the Mayham I have caused for asking my simple little question


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Don't worry, a little "Mayhem" is good once in awhile, just roll with it!

But I wouldn't worry about draining and refilling tires either way....remember the air we breathe is primarily Nitrogen....so it's all good!

Maintaining proper inflation is the key! and be safe in your travels!
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Old 09-07-2016, 08:26 AM   #22
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Originally Posted by danielabram71 View Post
I am so sorry for the Mayham I have caused for asking my simple little question


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Daniel, you haven't caused any mayhem.

It's better to ask a question and get less than helpful answers in amongst the helping ones...than not to ask at all and mess something up or fail to gain the knowledge you seek. It just works out that way sometimes in a forum environment, that the typed word doesn't necessarily display the correct "feeling" and can seem snippy.

We all try to help each other out, no matter if a question gets asked only once or a thousand times.

It's all good, and so is your question/thread.
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Old 09-07-2016, 09:02 AM   #23
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Whenever I fill my tires, I always use an 80% nitrogen mix, Its been working for me for years.

NOTE - the air you breath is 80% nitrogen, the compressor at the gas station will do just fine, it also is 80%.

Why I use 1100% nitrogen in my airplane tires:

1) We use a high pressure nitrogen bottle (3000 psi) when we service our tires to as much as 250 psi. Most standard compressors will not get to the pressure we need in our tires, and are horribly inconvenient to haul around to check and add air to tires.

2) Gas station compressors don't dry the air. The nitrogen in the tank is waterless, and has been dried, thus eliminating the possibility of water condensing and freezing inside the tire. Unless you drive your car at 40,000 ft with an outside air temperature of -65 degrees, this will probably not be an issue.


3) Autoignition - When a 250 psi tire reaches a temperature of approximately 500 Deg F, There is a possibility of the tire exploding if it has an oxygen source internal (not filled with 100% Nitrogen). The FAA has tested this and has issued an directive to use 100% nitrogen.

Use of Nitrogen or Other Inert Gas for Tire Inflation in Lieu of Air

4) At the high pressure, nitrogen is molecularity larger than an oxygen molecule, and can reduce minor losses of tire pressure and minor degradation of tire rubber due to oxygen impregnating the rubbers used in tires. (very minor issue, but is more of an impact with high pressure tires (450 psi)

Its important to note that item #4 isn't the reason Nitrogen is used in airplane tires, but is a small side effect of using nitrogen in aircraft tires.

The main reason is items #1 and to a lesser degree, #2. #3 is somewhat irrelevant, as at 500 Deg, the tire is on fire.

I suspect if I took two aircraft tires inflated to 250 psi, one was inflated with shop air and the other out of a nitrogen tank. You could set them on the ramp for ten years, and when you come back, you'd see the one with shop air lost a couple psi more than the one with 100 % nitrogen.


CONCLUSION - Would I use nitrogen in my car tires? No, the extremely small benefits for car tires isn't worth the addition work or cost.

..

Good summary. One minor correction. O2 leaves the tire air chamber faster than the N2 molecule is due to the reactivity of O2. These gasses are trying to reach a balanced level of distribution but O2 is more "mobile". Yes it is easier to think of molecule size but chemistry sometimes is more important feature.

If some still wonder about tire inflation with N2 they might want to read this blog post on the topic.
Dry air is desirable and here is a post on how to make your own low cost air dryer.
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Old 09-07-2016, 09:12 AM   #24
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Originally Posted by wmtire View Post
Daniel, you haven't caused any mayhem.

It's better to ask a question and get less than helpful answers in amongst the helping ones...than not to ask at all and mess something up or fail to gain the knowledge you seek. It just works out that way sometimes in a forum environment, that the typed word doesn't necessarily display the correct "feeling" and can seem snippy.

We all try to help each other out, no matter if a question gets asked only once or a thousand times.

It's all good, and so is your question/thread.
Well said.
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Old 09-07-2016, 10:26 AM   #25
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Besides all this...if the dealer says they are nitrogen filled...how would one ever know that's true?
You can tell by the green valve cap!
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Old 09-07-2016, 10:50 AM   #26
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You can tell by the green valve cap!
the green cap could mean the tire has slime in it to repair/prevent a leak, although that one is more of a barf green.

It is the N2 sticker on the side of the trailer that makes it official. No one would fake that!
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Old 09-07-2016, 11:39 AM   #27
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And some more fuel for the fire...

Did not see any comments regarding the reduced oxidation of the inside of the tire nor the reduction of rusting/corrosion of the inside of the wheel due to the lack of moisture in dry nitrogen.

I have no issues with folks that prefer to run compressed air, however I do take exception to those who label nitrogen a gimmick. It's frequently the same people who say the same thing about synthetic oil. There are benefits to both nitrogen and synthetic oil, it's a personal choice whether or not you see the value in it. I do.
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Old 09-07-2016, 11:55 AM   #28
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Did not see any comments regarding the reduced oxidation of the inside of the tire nor the reduction of rusting/corrosion of the inside of the wheel due to the lack of moisture in dry nitrogen.

I have no issues with folks that prefer to run compressed air, however I do take exception to those who label nitrogen a gimmick. It's frequently the same people who say the same thing about synthetic oil. There are benefits to both nitrogen and synthetic oil, it's a personal choice whether or not you see the value in it. I do.


It is a gimmick, pure and simple. Filling tires with 100% nitrogen claims to be a solution to a problem nobody has.

Gotta love the pro-nitrogen folks trying to justify their decision. LOL!




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Old 09-07-2016, 11:59 AM   #29
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Originally Posted by KatanaPilot View Post
Did not see any comments regarding the reduced oxidation of the inside of the tire nor the reduction of rusting/corrosion of the inside of the wheel due to the lack of moisture in dry nitrogen.

I have no issues with folks that prefer to run compressed air, however I do take exception to those who label nitrogen a gimmick. It's frequently the same people who say the same thing about synthetic oil. There are benefits to both nitrogen and synthetic oil, it's a personal choice whether or not you see the value in it. I do.
Unfortunately when you google this, all the tests verify there is little if any benefit for auto/RV tires. I know I've never had a wheel rust out or a tire oxidize from the inside. So to me it will always be a sales gimmick. But it doesn't bother me one bit if you believe otherwise
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Old 09-07-2016, 12:01 PM   #30
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Originally Posted by NMWildcat View Post
Unfortunately when you google this, all the tests verify there is little if any benefit for auto/RV tires. I know I've never had a wheel rust out or a tire oxidize from the inside. So to me it will always be a sales gimmick. But it doesn't bother me one bit if you believe otherwise
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