Nitrogen - Page 2 - Fiberglass RV


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Old 02-27-2021, 01:28 PM   #21
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All the gasses will mix in your tire creating a uniform gas that weighs the average of all the gasses when you account for the fraction of each gas in the mixture.
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Old 03-03-2021, 11:16 AM   #22
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Cosco Tire Centers use nitrogen.....and you get a pretty little green cap on the end of the stem. I put new tires on a car trailer and truck a couple years ago.....tires were nitrogen filled.....have used my compressor to fill tires since. As others have said.....keep the proper pressure in you tires....check them monthly.....air is fine.
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Old 03-03-2021, 11:47 AM   #23
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I have a question about filling a tubeless tire with nitrogen.
What happens to the air at atmospheric pressure when the tire is mounted?
You fill from there with nitrogen, but...
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Old 03-03-2021, 11:58 AM   #24
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As a retired chemistry teacher, I'm happy to see the level of understanding in this group.
My chemistry teacher colleagues and I are feeling the satisfaction of a job well done.
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Old 03-03-2021, 12:18 PM   #25
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To get rid of the oxygen in the tire you could use this tire mounting technique.

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Old 03-03-2021, 12:36 PM   #26
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Originally Posted by redbarron55 View Post
I have a question about filling a tubeless tire with nitrogen.
What happens to the air at atmospheric pressure when the tire is mounted?
You fill from there with nitrogen, but...
Oh no! Now we have to purge the tire repeatedly to get ALL of that pesky air out.

BTW, I like the guy in the video, doing it with a cigarette in his mouth.
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Old 03-03-2021, 12:43 PM   #27
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I supercool my tires with liquid Nitrogen. It eliminates all friction and gives me outstanding fuel economy!
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Old 03-03-2021, 01:56 PM   #28
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I supercool my tires with liquid Nitrogen. It eliminates all friction and gives me outstanding fuel economy!
The only downside is they become brittle and shatter like glass when you hit a bump.

BTW, has anyone investigated the purity of the nitrogen in question? What percentage of trace impurities, other gasses, are there. People may not actually be getting 100% nitrogen. Where is the certification?

What if it turned out to be only 78% nitrogen?
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Old 03-03-2021, 03:30 PM   #29
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Oh no! Now we have to purge the tire repeatedly to get ALL of that pesky air out.

BTW, I like the guy in the video, doing it with a cigarette in his mouth.
No that is easy. You just bore a hole in the tire opposite the valve stem then you can flush the tire out.
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Old 03-03-2021, 04:05 PM   #30
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Why don't they use CO2? Is it because it is to heavy?
Would be a great way of storing CO2 to get it out of our environment.
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Old 03-03-2021, 05:17 PM   #31
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I was an aircraft mechanic and pilot. Nitrogen is used in aircraft tires for one reason - fire suppression. If a pilot has to apply the brakes long and hard (going to overshoot the runway) there's a strong possibility that the brakes will greatly overheat and catch fire. That fire will spread to the tires. Tires filled with nitrogen will not put out the fire but they won't support or enhance the fire like tires filled with compressed air will.

To me there's no advantage on filling your car or trailer tires with nitrogen. If you maintain your own tire pressure like I do, how are you going to store nitrogen at home! Can you find a tire store or such in every town! The Ford dealer in my town doesn't have nitrogen!

It's a waste of time and money IMO!
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Old 03-03-2021, 08:00 PM   #32
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Every day I use nitrogen to dilute the oxygen to the proper level to breathe. I like about 78% most of the time.
If flying at altitude I like a little more. At high altitude I like 100%. A little higher still I like to have it pressurized as well.
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Old 03-03-2021, 09:39 PM   #33
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I'm beginning to think most of us are on the same page with this subject. Wait a minute!!! That can't be! One might think we're all breathing the same 78% nitrogen, or something!
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Old 03-04-2021, 07:03 AM   #34
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How much racing to you do with your trailer ;-) If you actually read up on this, you get very little advantage over air which also is mostly nitrogen. And pretty much all of that advantage comes from being at high speed and trying to navigate through traffic at high speed and beat that traffic around curves. So if you are really doing high speed over 100 mph most of the time and are trying to beat the other traffic through curves at those speeds you definitely need this nitrogen. Absent that it is a way to grab money from you.
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Old 03-04-2021, 07:26 AM   #35
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I’m still trying to figure out if this was a serious question or just an attempt to poke fun. The fallacy of nitrogen fill in passenger vehicles has been well known for a long time. Why Costco still does it is a mystery to me, but I guess there are people that missed the memo. You don’t pay extra for it, but you’re paying for it in the prices. If Costco offers the best price and service in your area, I wouldn’t avoid them because of the green caps. If you don’t want to advertise your gullibility you can replace the green caps with black.

Some car dealers and tire shops will try to pad their profit with an extra charge for nitrogen fill. Refuse point blank. Bring out your knowledge of atmospheric chemistry if needed.
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Old 03-07-2021, 04:53 PM   #36
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Hey...I like my green caps on my car trailer.....plus.....I got a hot dog and pop for $1.50 while waiting for the Cosco crew to mount the tires. Life is good.
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Old 03-08-2021, 07:21 AM   #37
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Quote:
Originally Posted by jerrybob View Post
Hey...I like my green caps on my car trailer.....plus.....I got a hot dog and pop for $1.50 while waiting for the Cosco crew to mount the tires. Life is good.
Hi: jerrybob... To "Air" is human... "Nitrogen" define?
Alf S. North shore of Lake Erie
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Old 03-08-2021, 07:45 AM   #38
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Used to get tires at Costco. Used to take an hour. Then it became two hours. Then three to four. I can only eat so many hot dogs...

Switched to a new, local Discount Tire. Back to an hour or so. There’s a coffee shop next door. Black coffee, black caps!
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Old 03-08-2021, 11:22 AM   #39
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I think this whole thread has gotten a bit out of balance!
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