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Old 09-14-2013, 01:00 PM   #21
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Based on my research when I worked for Boeing (Landing gear group) you only NEED nitrogen of you can run for 2 miles with a dragging brake, get to 170 mph doing it, and then retract the wheels into a closed box. After about 45 minutes there'll be a big bang.

If you can't do that, it's a waste of money/tire dealer con job.
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Old 09-15-2013, 11:18 AM   #22
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We use it for tire fill in the aviation world.

Biggest advantage is it is essentially inert.

The other advantage is that it is dry. Meaning: less chance of corrosion inside the assembly. Compressed air also means compressed humidity, which means moisture in the tire/wheel. Nitrogen isn't compressed out of the atmosphere, it is extracted (and damned cold!).

I would think the biggest advantage in an automotive application would be the "dry" part.....
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Old 09-15-2013, 11:35 AM   #23
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Had nitro filled tires on my trailer. Now I just fill with regular air. Based on what I read it is a waste of money. Another way to get money out of you for something that was free(air)
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Old 09-15-2013, 12:06 PM   #24
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I'm gonna start selling 78% nitrogen to supplement my SS check.
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Old 09-15-2013, 03:11 PM   #25
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To clarify my post a little, several airplane tire bursts I studied were actually spontaneous explosions of the gases that built up when the tires got very hot (over 750 degrees). Nitrogen will not support combustion - air will. One 727 incident we analyzed showed a spike in the internal tire pressure to around 12,000 psi that blew rubber and tire carcass debris against the airplane structure and caused an 18" hole.
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Old 09-15-2013, 03:20 PM   #26
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Mine came with Nitrogen. All four tires have remained at a constant 50psi, so I have 't touched them. Will use regular air when time comes.
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Old 09-15-2013, 03:35 PM   #27
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Mine came with Nitrogen. All four tires have remained at a constant 50psi, so I have 't touched them. Will use regular air when time comes.
May I suggest that you verify that 50 is what the sticker on the side of your RV says? Sounds a little low to me.
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Old 09-15-2013, 03:45 PM   #28
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Nitrogen is not only a waste of time and money (outside professional racing and the aviation industry), it is sooo old skool!
I'm using helium in the tires of both my TT and TV - it has reduced the tongue weight significantly and increased my GVCW tremendously. Plus, the only time I get tire wear is when they actually touch the ground!
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Old 09-15-2013, 03:48 PM   #29
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Quote:
Originally Posted by F and E Damp View Post
To clarify my post a little, several airplane tire bursts I studied were actually spontaneous explosions of the gases that built up when the tires got very hot (over 750 degrees). Nitrogen will not support combustion - air will. One 727 incident we analyzed showed a spike in the internal tire pressure to around 12,000 psi that blew rubber and tire carcass debris against the airplane structure and caused an 18" hole.
And that is the reason the FAA issued an Airwothiness Directive ( in 1989 if I'm correct). After some fires and explosions resulting from overheated brakes in magnesium wheels on large airplanes and the resulting airframe damage, it was determined that air servicing of tires on braked wheels on large airplanes be replaced with nitrogen servicing.

Some of the damage was severe as the fragments from the exploding wheels usually tore up the aircrafts wheel wells and pressure bulkheads.
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Old 09-15-2013, 03:55 PM   #30
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Nitrogen is not only a waste of time and money (outside professional racing and the aviation industry), it is sooo old skool!
I'm using helium in the tires of both my TT and TV - it has reduced the tongue weight significantly and increased my GVCW tremendously. Plus, the only time I get tire wear is when they actually touch the ground!
Yeah but crosswinds would be a whole new shorts staining experience....
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