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Discussion Starter #1
What do you folks know about using nitrogen instead of air in tires?
 
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Discussion Starter #3
In article <[email protected]>
[email protected] "D.D. Palmer" writes:

> What do you folks know about using nitrogen instead of air in
> tires?


Quite a lot, IIRC from a thread some months ago. Google could be
your friend, if you'd let it.
--
Andrew Stephenson
 
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Discussion Starter #4
Air is already 78% nitrogen. IMHO it's a waste of money, check your
tires once a month (more often in cold weather) and you'll be fine.


D.D. Palmer wrote:
> What do you folks know about using nitrogen instead of air in tires?
 
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Discussion Starter #5
"D.D. Palmer" <[email protected]> wrote in message
news:[email protected]
> What do you folks know about using nitrogen instead of air in tires?



There have been numerous discussions about this. Conclusion: It won't hurt,
but you'd be nuts to pay for it. Who's trying to sell it in your area? Pep
Boys?
 
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Discussion Starter #6
"D.D. Palmer" <[email protected]> wrote in message
news:[email protected]
> What do you folks know about using nitrogen instead of air in tires?
>


Good morning.
I know nitrogen is injected into those one cup coffee servings to help keep
the coffee grounds fresh. The plastic container and foil lid wouldn't hold
up to a vacuum seal.
It's not the answer you're looking for I know, but I wanted to give you one
example where it's benefit is undisputable.
mark_
 
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Discussion Starter #7
"D.D. Palmer" <[email protected]> wrote in message
news:[email protected]
> What do you folks know about using nitrogen instead of air in tires?



Used in racing all the time; helps keep pressures consistent in spite of
extreme temp changes.

I don't think you have to worry about the same extreme conditions in you
passenger vehicle so I'm not too sure what you will gain.

What do you expect to gain?

--

Rob
"A disturbing new study finds that studies are disturbing"
 
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Discussion Starter #8
"D.D. Palmer" <[email protected]> wrote in message
news:[email protected]
> What do you folks know about using nitrogen instead of air in tires?


The nitrogen molecules are larger than O2, so tires supposedly loose
pressure from leaks much slower with pure nitrogen. Depends on how much more
it costs as to whether it is worth it.
 
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Discussion Starter #9
On Fri, 19 Jan 2007 08:42:46 -0700, Mark A wrote:

> "D.D. Palmer" <[email protected]> wrote in message
> news:[email protected]
>> What do you folks know about using nitrogen instead of air in tires?

>
> The nitrogen molecules are larger than O2, so tires supposedly loose
> pressure from leaks much slower with pure nitrogen. Depends on how much
> more it costs as to whether it is worth it.



I bought my own compressor...I don't care! ;)
 
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Discussion Starter #10
On Fri, 19 Jan 2007 07:39:34 -0500, "D.D. Palmer"
<[email protected]> wrote:

>What do you folks know about using nitrogen instead of air in tires?


If they're doing it for free as part of their normal service, can't
hurt and may help with tire longevity on cars that don't get driven a
lot - where the tires rot out before they wear out.

If they charge for it, or that shop charges more than the guys down
the street for the same tires, forget about it. It's supposed to be
an added draw to get customers, not an added profit center.

Getting the Oxygen (21%) out of the air they use in the tires does
keep the pressure constant in the tires and they don't leak down as
fast (Oxygen molecules are smaller and get through the gaps in the
rubber easier) and the inside rubber lining of the tire doesn't
deteriorate over long periods of time. But IMHO the effects are
minor.

The only place you /have/ to use Nitrogen is on aircraft and
specialty tires that run at ultra high pressures and go up to high
altitudes. Airplane tires run at 300 PSI on the ground, and when you
add in the reduced pressure at 40,000 feet...

--<< Bruce >>--
 
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Discussion Starter #11
In article <[email protected]>
[email protected]lid "Bruce L. Bergman" writes:

> The only place you /have/ to use Nitrogen is on aircraft and
> specialty tires that run at ultra high pressures and go up to high
> altitudes. Airplane tires run at 300 PSI on the ground, and when you
> add in the reduced pressure at 40,000 feet...


Digression time? Fair point, though I'm not sure the numbers are
too scary. At ground level, air pressure is around 15psi. Would
300psi not be pressure in excess of that? Thus absolute pressure
is only 315psi, which is the value to use when (say) at such high
altitude that you may as well be out in airless space. What does
concern me is what happens when a plane enacts an emergency stop:
colossal temperatures are built up in the nearby wheel hubs (such
that the brakes glow pink-white -- as in a TV documentary series,
about the design and building of the Boeing 777, which showed the
_extremely_ stressful emergency braking test). Flammability then
is acutely interesting. Carrying a load of diluted oxidiser in a
neat presurised package next to such a hot mass is a tad naughty.
--
Andrew Stephenson
 
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Discussion Starter #12
The idea is that nitro does not eat away at the rubber, and the molecules
are larger than air molecules, so nitro should not leak out over time.
(Tires will leak air over time, they should leak less nitro than they will
leak air.)




"D.D. Palmer" <[email protected]> wrote in message
news:[email protected]ast.com...
> What do you folks know about using nitrogen instead of air in tires?
>
 
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Discussion Starter #13
"Mark" <[email protected]> wrote in message
news:[email protected]
> Air is already 78% nitrogen. IMHO it's a waste of money, check your
> tires once a month (more often in cold weather) and you'll be fine.
>


Waste of money? Do people PAY for nitro? I bought tires at Costco, and they
_claim_ to use nitro as part of their normal tire installation.
 
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Discussion Starter #14
"Jeff Strickland" <[email protected]> wrote in message
news:[email protected]
>
> "Mark" <[email protected]> wrote in message
> news:[email protected]
>> Air is already 78% nitrogen. IMHO it's a waste of money, check your
>> tires once a month (more often in cold weather) and you'll be fine.
>>

>
> Waste of money? Do people PAY for nitro? I bought tires at Costco, and
> they _claim_ to use nitro as part of their normal tire installation.



The idea about paying for it may have come from another thread from last
summer, IIRC. I believe someone mentioned that Pep Boys were charging for
nitrogen as if it were an accessory.
 
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Discussion Starter #15
If you mean free nitrogen, why not? The question is would you spend money
to get 100% nitrogen inside of your tires, rather than the 87% nitrogen that
is OUTSIDE your tires and in the compressed air inside of your tires? ;)


mike


"D.D. Palmer" <[email protected]> wrote in message
news:[email protected]
> What do you folks know about using nitrogen instead of air in tires?
>
 
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Discussion Starter #16
Costco put nitrogen in the Cross-terrains for our Highlander and at 45k,
wear is good and pressure always good (less than a pound or so at 6 months)
Also put it in the MXV4's on the Avalon, figured it was free with the rotate
& balance (OEM's not Costco tires).

Seems as if in previous discussion someone talked about NASCAR drivers using
it too?
Ron
 
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Discussion Starter #17
"Mark A" <[email protected]> wrote in message
news:D[email protected]
> "D.D. Palmer" <[email protected]> wrote in message
> news:[email protected]
>> What do you folks know about using nitrogen instead of air in tires?

>
> The nitrogen molecules are larger than O2, so tires supposedly loose
> pressure from leaks much slower with pure nitrogen. Depends on how much
> more it costs as to whether it is worth it.


Even if true, air is already 80% Nitrogen. Becasue of changes in avarage
temperature, if you maintain your tires properly, you will be adding air
frequently (or letting some out possibly) wheter the O2 leaks out faster or
not. The difference is trivial.

Ed
 
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Discussion Starter #18
"Jeff Strickland" <[email protected]> wrote in message
news:[email protected]
> The idea is that nitro does not eat away at the rubber, and the molecules
> are larger than air molecules, so nitro should not leak out over time.
> (Tires will leak air over time, they should leak less nitro than they will
> leak air.)


Once again - "ordinary air" is already 80% Nitrogen.

Ed
 
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Discussion Starter #19
D.D. Palmer wrote:
> What do you folks know about using nitrogen instead of air in tires?


It helps extend the life of the tires, and helps keep the pressure stable.

Costco provides it at no extra charge when you get tires there.

I see the tell-tale green valve caps on probably about 1/4 of vehicles
now. Around here, Costco is the biggest tire retailer by far.
 
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Discussion Starter #20
>> "D.D. Palmer" <[email protected]> wrote in message
>> news:[email protected]
>>> What do you folks know about using nitrogen instead of air in tires?

>>
>> The nitrogen molecules are larger than O2, so tires supposedly loose
>> pressure from leaks much slower with pure nitrogen. Depends on how much
>> more it costs as to whether it is worth it.



Hahahahaha, thanks for the laugh!
 
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