I agree totally. In fact, any moisture in a pressurized environment is
far more corrosive and chemically active than when in a more benign
environment.

John Rodgers
88 GL Driver

-------- wrote:
> Well for the reasons they stated,  it may be bogus, but not
> for other reasons.  Any gas, the does not inclued oxygen,
> or water, will help keep the rim from rusting of corroding, and
> pervent leaks at the bead.  AL or steel, they all have
> problems over time at the bead.
>
> John Rodgers wrote:
>
>> Frank,
>>
>> That's bogus! It's a marketing ploy by Costco.
>>
>> Gases - nitrogen or otherwise - all follow the "Ideal Gas Law". This law
>> - oft stated in chemistry and physics - is comprised of three other laws
>> - Boyles Law, Charles Law, and Gay-Lussac's Law.  A fairly comprehensive
>> and easy to read summary of these laws is found in Wikipaedia. The
>> inside volume of the tire remains constant, so as temperature changes,
>> whether from the weather or from rolling friction on the road, the
>> pressure will change. The case for nitrogen being used in the Agilis
>> tire is that it is a very dry gas - no entrained moisture - and being a
>> relatively inert gas, it reduces the tendency of the tire to rot.
>>
>> BTW, I'm soon to need new tires, and the Agilis is my choice for the
>> next set.
>>
>> Regards,
>>
>> John Rodgers
>> 88 GL Driver
>>
>> Frank Condelli wrote:
>>
>>> In a message dated 20/09/2007 6:15:56 A.M. Eastern Standard Time,
>>> WHalsey@sya.org writes:
>>>
>>> Why  nitrogen? I have never heard of that.
>>>
>>>
>>>
>>> Because that's what COSTCO is doing.  The  pamphlet I got from COSTCO
>>> says:
>>> Nitrogen helps stabilize a tire's  inflation pressure.
>>>
>>> Cheers,
>>>
>>> Frank  Condelli
>>> Almonte, Ontario, Canada
>>> '87 Westy & Lionel Trains (_Collection for sale_
>>> (http://members.aol.com/Fkc43/trainsal.htm) )
>>> _Frank Condelli &  Associates_
>>> (http://members.aol.com/Fkc43/busindex.html)
>>> - Vanagon/Vanagon Westfalia Service in the Ottawa Valley
>>> _Vanagon Stainless Steel Exhaust  Systems_
>>> (http://members.aol.com/Fkc43/stebro.htm)
>>> _BusFusion_ (http://members.aol.com/BusFusion/bfhome.htm)  a VW Camper
>>> camping event, Almonte, ON, June 07 ~ 10,  2007
>>>
>>>
>>>
>>
>>
>
>