Nitrogen In Tires - Page 4 - Kia Forum

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post #31 of 33 (permalink) Old 01-14-2018, 03:46 PM
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Originally Posted by Rio Taxi View Post
I fully realize that 78 % or whatever of oxygen is comprised of nitrogen. They started putting it in certain aircraft due to the ambient temperatures encountered when moving thru thru different speed and altitude envelopes, because that 22% must have made a difference somehow. The outside air temps at 40,000 feet are similar to our extreme winters here, and as we chill and thaw, our temps can fluctuate dramatically.

Not only have slow leaks stopped, but TPMS lights have also stopped going off as well. Most TPMS systems light up if there is a .5 PSI variance.......to me, pure nitrogen reacts differently than oxygen. Obviously, something is happening here and I am no chemist, but if it works for me...........so be it.

YMMV in a different climate.

wow i musta missed this one, but the outside air temp at 40000 feet is around -60C. Air temp drops roughly 2C per 1000 feet from surface ambient. That is a FACT any pilot is aware of.

Show me when we hit -60C anywhere in Canada? Nothing even remotely CLOSE to that....anyplace there are roads anyway.

N2 is used in aviation because it is more stable with temperature swings. LARGE temp swings. Temp swings that can go from +60c sitting on the sun baked ramp somewhere in the African summer to the aforementioned 40000 foot cruising altitude. And that swing can occur in 15 or 20 minutes.

KIA issued a TSB plainly stating that N2 in tires offers NO benefit to owners. That's a KIA TSB!

You are spreading uninformed mis-information.

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Last edited by Sloppy; 01-14-2018 at 06:12 PM.
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post #32 of 33 (permalink) Old 02-24-2018, 08:51 PM
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Sorry for the late reply, but I don't get down here to the rest of the forum often.

Could I suggest Timmins, Ontario perhaps ? It is the coldest place in Canada apparently.

My point was that anecdotally, it seems to prevent slow leaks in my experience.

We just finished a solid month of consistent -30 to -40 weather every day here in Calgary, the coldest February on record in 25 years according to the news media. So, if you drive outside and then park inside your heated garage (like many do) you get the 50-60 degree celcius temperature swing I spoke of, well within the time frame you mentioned.

Even if you don't however (my wife gets the garage at our condo, and I get the street) I've had slow leaks in the colder temps here before I started using nitro, and now I don't.

YMMV.............

FWIW I am not spreading misinformation at all. Their TSB says it adds "little, if any, appreciable value"...........not "none" as you stated.

Last edited by Rio Taxi; 04-07-2018 at 11:42 AM.
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post #33 of 33 (permalink) Old 04-02-2018, 02:49 PM
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Just my experience, make what you want of it. I was actually on the scene of a car show where a Bugatti was going to run for the show. The guy asked a bunch of us if we had an air compressor. Initially we all said no, but then I remembered I had a cheap cigarette lighter one from Wally world. They used it to top of the tires before they ran it 200+ mph. IMO that debunks nitrogen innthe tires period!
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