The only thing the nitrogen does extra is keep the tire from rotting from
the inside. No oxidizing of the rubber because the nitrogen is inert and
displaces the oxygen. Other than that, it's a wash.

John
On Oct 17, 2015 17:11, "Rocket J Squirrel" <camping.elliott@gmail.com>
wrote:

> "Not sure how he would evacuate the normal atmospheric air form the
> process [...]"
>
> Good question . . . aren't they just pushing nitrogen into a tire that
> is already at 87% N at atmospheric pressure?
>
> Quick, someone do the math: after inflating a tire to, say, 40 psi by
> adding nitrogen atop regular air at atmospheric pressure, what's our % N?
>
> --
> Jack "Rocket j Squirrel" Elliott
> 1984 Westfalia, auto trans,
> Bend, Ore.
>
> On 10/17/2015 02:57 PM, Max Wellhouse wrote:
>
>> Eric:  I have a friend here in Cedar Falls Iowa that fills his tires
>> exclusively with nitrogen.  He runs a really small tire mounting and
>> balancing shop out of his garage and does mobile repairs as well.  He
>> says that in order to mount tires and fill them with nitrogen, you
>> have to make sure the bead sealing surface is absolutely pristine, so
>> there's no chance of micro leaks from pitted sealing surfaces.  I
>> think he charged like $10/tire to do the fill.  Not sure how he would
>> evacuate the normal atmospheric air form the process, but I have used
>> his services on my Vanco II Continentals mounted on Mercedes CLK
>> forged aluminum rims(mounted on my 90 GL  BTW)  and they haven't lost
>> 1 psi in like 4 years.  I think Tire Rack offers the service as well.
>> NASCAR Racers use nitrogen     YMMV
>>
>