List,
Speaking of moisture in tires, I know there are a lot of farm tractors and
other machinery that fill their tires with water for the added weight, I
don't know if they go through more tires because of doing that or not.
I do know that most all aircraft tires are filled with NO2.
Jerry Christopherson
9473187
-----Original Message-----
From: tigers-bounces@autox.team.net [mailto:tigers-bounces@autox.team.net]
On Behalf Of Sandy Ganz
Sent: Sunday, May 23, 2010 12:47 PM
To: Tod Brown; tigers@autox.team.net
Subject: Re: [Tigers] Nitrogen filled tire fad
Yes, it's not the gas type it the water content as Tod said. I think
nitrogen
is a gas that became popular since several companies make extraction systems
that can take it from air and 'filter' out the oxy molecules or some such
thing, entire unit sold to tire shops with the "Buy this and turn a profit"
sales pitch, and your get free green valve stem caps...
Nitrogen is also
pretty inexpensive and common since bar's use it for beer dispensers so
regulators and the like are super cheep for the hobby guys, the funded
racers
use not-so-cheep (welding, etc) equipment as you might expect.
You can pull
a vacuum on a tire, the bead will hold (once seated) but I guess that
depends
on how much you try to pull. As I said before, just checking and
maintaining
the air in your tires is more then most people do, doing just that solves
most
of the claimed benefits Nitrogen, mileage, tire wear, clean underware and
fresh breath or what ever the claim these days are.
Anyone want to recommend
a syntheitc oil? (just kidding!)
Sandy
----- Original Message ----
From:
Tod Brown <todbrown@roadrunner.com>
To: tigers@autox.team.net
Sent: Sun, May
23, 2010 6:40:24 AM
Subject: Re: [Tigers] Nitrogen filled tire fad
The Ideal
Gas Law which, no doubt, many of you remember studying in your
chemistry and
physics classes long ago, indicates that all gases behave
identically, so
long as they are sufficiently far from their
condensation (boiling) points.
For nitrogen the BP is -196 C and for
oxygen it is -183 C, so I think we can
assume that both will behave in
the same way when undergoing a temperature
change, unless you live in
some rather extraordinary climate. If you do, I
would suggest that you
probably have several more important worries than
filling your tires
with nitrogen and that it would be a good idea to move.
In short, so
long as the gas in your tires is dry, it makes little, if any,
difference which gas you use. Some argue the benefits of not using
oxygen in
your tires to reduce degradation of the tires. However, keep
in mind that
the exterior will be exposed to oxygen, so I think there is
little to be
gained on this score. Unless someone with some really
convincing data comes
along, I remain unconvinced by people who want to
charge me to fill my tires
with nitrogen.
Cheers,
Tod
B382002384LRXFE
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