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Old 06-02-2015, 03:59 PM   #61
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I use 79% Nitrogen as well.

Total waste of money, IMO.
YMMV
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Old 06-02-2015, 04:11 PM   #62
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All the reports are based on how much air you lose. If you check your pressure regularly and keep you tire inflated to the manufactures specification there is no advantage to nitrogen. Read this study NHTSA 2008 Nitrogen Inflation Study on the Branick site. It says that if you don't have to refill your tires just top them up in three years the oxygen level goes from 21% to 15%
"An analysis of oxygen levels in the inflation gas of
seventy-six tires that were currently in service on passenger vehicles, and which were all originally inflated and toppedoff
with air (21% O2), showed that the inflation gas dropped to an average of 15% O2 after about three years of service"
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Old 06-02-2015, 04:12 PM   #63
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Quote:
Originally Posted by stevendhoffman View Post
http://www.branick.com/Nitrogen%20-%...20Nitrogen.pdf

Here are the facts for your consideration.
Interesting non-profit whose sole purpose is to create a market for a waste product of aviation oxygen production.
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Old 06-02-2015, 05:19 PM   #64
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Interesting facts about under-inflation and tire wear, loss of mileage, etc... You'll get no argument from me on any of that as it's all proven fact. In all of that I saw nothing about them running cooler... There's no scientific... or common sense... data supporting anything other than the tire losing pressure a little quicker with compressed air. No one has come up with a valid explanation as to how the other gasses are evacuated from the tire to get 100% nitrogen fill, so I'll have to assume they don't actually do that.


I recently took a 2000 mile trip and made sure my tires were at proper pressure before leaving. I was gone 12 days and my tire pressure had diminished by about 1/2 psi average when I backed it back into it's storage spot. Two months later and they were up 2 psi due to warmer ambient temperatures... Why is this such a big deal? If filled with nitrogen, the same result would be there... or so close it wouldn't really make a difference.
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Old 06-02-2015, 07:24 PM   #65
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So... it boils down to... If you think it's worth whatever they are charging to raise the percentage of nitrogen in your tires, go for it... but do so with the knowledge that what's in your tires isn't pure nitrogen, and it's not a fail-safe method of keeping your tires cool, or preventing blow-outs... And please check your tire pressure before leaving town... for your safety and for the sake of enjoying your trip, as trouble-free as possible.
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Old 06-02-2015, 10:25 PM   #66
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For 20+ years I've worked with a world wide supplier of industrial gasses. We produce it and distribute it. With the thousand upon thousands of our tires on the road daily with semi's, service trucks, sales, and company cars...not a single one runs nitrogen in the tires. We have an unlimited supply and we don't use it. We did many years ago but only because we ran our shops on N2 instead of air compressors. For safety reasons, asphyxiation, we don't use it any longer. I don't see any difference in blow outs than before. Most, if not all, were due to tire damage or under inflated. Can't say if fuel mileage is any better of worse since most vehicles get better fuel mileage.
Over the years I've seen contracts for liquid N2 ranging from .24 - .35 per 100 cubic feet. There is 93.11 cubic feet per gallon liquid. I don't know how many cubic feet of air a tire will hold but I suspect 30cents will fill quite a few tires.
For the record...air is only 78.09% nitrogen.


oh...and I just topped off all my factory filled TT tires with 8lbs each of air including the spare that has never touched the ground. Inside storage, too!


Yeah, I think you're getting ripped off!
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Old 06-03-2015, 04:52 AM   #67
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Quote:
Originally Posted by Grampa Jim View Post
I believe that the vulcanization of rubber in a tire is broken down faster with oxygen present.
Agreed. But how do you prevent the external parts of the tire from being exposed to that beastly element?
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Old 06-03-2015, 05:09 AM   #68
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Originally Posted by gljurczyk View Post
Nitro, will run the tire temp cooler, as far as the vacuum. If they use the machines it will vacuum out any air in them. That is the main reason they use it in Plane tires.
Not exactly... N2 (Nitrogen) is an inert gas and as such does not support combustion. Back in the 50s, when magnesium alloy wheels became all the rage for high performance aircraft, there arose a problem. Overheated brakes or brake fires were frequently leading to the loss of aircraft due to the propensity for magnesium to burn, fed by air (O2) in the associated tire. That was the primary driver for the subsequent employment of inert gases (N2) to inflate aircraft tires.
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Old 06-03-2015, 05:56 AM   #69
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Wow the article posted is very interesting and twists the facts like most sales articles.

While under inflated it is true tires do wear quicker, but it does not matter what gas is in them air or nitrogen. They will still wear the same if under inflated. Many people do not check the air pressure often or ever in their vehicle. So many vehicles are under inflated this will make them feel more secure in not checking their tires at all. Nothing to do with what is in them.

Just for me I had to add air to my nitrogen filled tires just like any tire I have owned so now they are at 79%. Around here Nitrogen is costly & hard to find Unless you step outside there is still plenty of the 79% nitrogen.

Oh disregard I forgot if it is on the internet it must be true....

If any one is interested I could probably come up with a few pet rocks to sell everyone needs one.......
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Old 06-03-2015, 06:22 AM   #70
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Old timer ting.....Dang.... Just thought of this....The next time I have the Plant Managers & Engineers together at either the Goodyear or Yokohama tire plants in the area I will get their take on Nitrogen. But that will be awhile maybe, who knows.....but knowing me I will forget........ where am I??? ...... This job is great don't know day to day where I might end up.... been many places I would never get to go any other way.............

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