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Old 08-12-2011, 12:37 PM   #21 (permalink)
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Depends on whether its a fruit or cereal day for the herd.

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Old 08-12-2011, 01:09 PM   #22 (permalink)
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Quote:
Originally Posted by Old Tele man View Post
Q: What's the difference between Unicorn Breath and Unicorn Wind?

A: Intake and exhaust = temperature and composition (or is that compost?)
Hahahahaha!!
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Old 08-12-2011, 02:48 PM   #23 (permalink)
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...UP wind or DOWN wind in the corral?
Unicorn wind blows opposite of normal wind.
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Old 08-12-2011, 05:53 PM   #24 (permalink)
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Originally Posted by ChazInMT View Post
.

Yer taking some chances here. Good luck to you.

That was funny, you have to admit. I think I hurt myself laughing.

One word: Snowed.

Somebody's done some good advertising!
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Old 08-12-2011, 06:26 PM   #25 (permalink)
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look, since the op never replied to the BS call on his post, there are no facts in is rant.

I didn't invent N2. I didn't pay to have it put in my tires. Radial Tires of Sacramento (probably the largest Michilin dealer on the west coast) put it in for free. Only claim was that i wouldn't see the psi fluctuations that I see with o2. I drive 30-40k a yr, back and forth to tx from ca 2-3 times.
The infiniti has a psi sytem. it works. And I can tell you factually that the psi in the N2 tires never fluctuated more that 1psi at 46psi.
the o2 would fluctuate 3-4psi.
Now if Im not having to screw with psi at the gas station then there is a small improvement in mpg because. I don't claim it though.

Now the moron in the wh said that if everybody would just check their airpressure we could save gas. he said alot of people are under inflated.


I can tell you, with n2, I was NEVER underinflated. period.

So, stop the bs with this law and that law.

Run it for 10,000 miles and document you bs claims........otherwise your the unicorn because you never ran a test.
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Old 08-12-2011, 08:20 PM   #26 (permalink)
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Quote:
Originally Posted by oil pan 4 View Post
You can search and find web sites claiming that nitrogen in your tires will cause pressure to bleed off 40% to 60% slower. The standard time frame they use is "between oil changes" so I take that as every 3 to 6 months. It should be checked every month.
I said that earlier. Do you not know how to search google?

Here is the #1 google pick, top of the page:
Nitrogen in Tires : Information about Nitrogen Tire Inflation News, Benefits, Generator Dealers, Location Finder & More
That is one of the many links that will come up claiming reduced pressure drop over time and increased fuel economy.



Also I remembered I saved some of my really old data collection via an email folder when talking about varrious things with my engineer friend.

Here is some of what I saved toward the end of the tests:

The car will not be driven, maybe at then end of the day I might take it for a spin to warm up the tires for one last measurement.
So far as of [Jan 13, 2007], 0913 eastern time my temp and pressure measurements look like this.
Both tires adjusted to 33psi.
Left Rear temps:
Tread, 56.4'F
Side, 59.9'F
Rim, 56.5'F
Right rear temps:
Tread, 56.3'F
Side, 58.9'F
Rim, 55.5'F

Now we wait for Boyle's LAW to do the rest.

As of 1115 EST
Left Rear (in the sun)
PSI 34.5
Tread 72.2'F
Side wall 96.6'F
rim 75.2'F

Right rear (shade)
PSI 34
Tread 67.2'F
side 67.5'F
rim 64.5 'F

1212 EST

Left rear (still in the sun)
PSI 35
Tread 73.9'F
Side 97.7'F
Rim 77.1

Right rear
PSI 34.5
Tread 70.4
Side 74.2
Rim 67.7

1735 EST

Left rear (after a 4 mile drive)
PSI 36

Right rear
PSI 36

That is a sample of the most complete and detailed data I managed to save. We did this on and off for months. Turns out I didn't save very many of those emails.
He ran the same test on his truck, with out the detailed temperature readings and saw almost the same result.

Then on August 21, 2006 I completed a 1,200 mile road trip:

Well I just got back form that 1200mi trip this weekend. Ended up going form NewportNews VA to NY,PA border then to Roanoke, VA then back to NewportNews.
I had the [updated: now exwife] + 100's of pounds of s*** she had to have + K-9 = about 400 more Lb's then normal.
I got 24mpg.
also brought the craftsmen temp gun to do the tires.
Tires were normally 20'F (for side wall) to 25'F (for tread) hotter then the road and over 30'F hotter then the air temp.
I don't think it makes your tires run any cooler.
I took readings 8 or 9 times, and it was hoter then the normal for air tires.
I'm glad I didn't pay for getting the tires filled with nitrogen.
---

On a side note that was a really horrible trip and was one of prime factors that helped put the x in exwife and I had all but forgotten it till now. Thanks....


Most of the emails were about unchanged fuel milage, my tire with a slow leak. I can say for sure the tests when from late june, 2006, when the first email was sent telling my friend I was gathering a data set for an Air Vs. Nitrogen tire test. The first day of nitrogen tire tests started August 2, 2006. Some time that november the test expanded when I took his truck into work and nitrogen purged and filled his tires for free also. And we ended anything that resembled data collection Feb 27, 2007 when we concludeded that putting nitrogen in tires wasn't going to do you any good so long as you replaced your tires every 4 to 6 years.
He logged almost 15,000 miles from november (thanksgiving if I remember right) to Feb 27, his were nearly all high way miles.
I logged less than 5,000 from August 2006 to Feb 2007, all city miles but for the one road trip.

I still use nitrogen in tires since I log so few miles I could keep a set of tire for longer than 6 years.

Last edited by oil pan 4; 08-12-2011 at 08:40 PM..
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Old 08-12-2011, 08:31 PM   #27 (permalink)
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Here is the original post detailing the nitrogen tire filler I built out of a paintball tank.
I had to come up with a way to refill my tires with nitrogen to keep the test consistant.
The content and pictures of the post are gone, but notice the date and user name.
Built my cordless N2 tire filler to day. - Diesel Place : Chevrolet and GMC Diesel Truck Forums
Note the date of the last post: 09-16-2006 11:07 PM and my user name.

If you cant view anything from the link above with out logging in, here is the forum page it can be found on or near. Right now its page 419, they add about a page a week so it could be further back depending on when you check.
http://www.dieselplace.com/forum/for...ne=-1&page=419
Any one can view the see the date and time I created it and any one should be able to see a fly over summary of my original post that is now a ghost.

You want to say anything else?

If anything thanks for the trip down memory lane.

Last edited by oil pan 4; 08-12-2011 at 09:12 PM..
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Old 08-15-2011, 02:51 AM   #28 (permalink)
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Quote:
Originally Posted by ChazInMT View Post
Even though the spring rate of regular air is 6.3 m/sec and Nitrogen is 6.25 m/sec???? And don't forget, the regular air has as much as 2% H20....This substance has been proven to be a gas, or, a solid, when it isn't being a liquid....highly dependent on the ambient air temperature.

Yer taking some chances here. Good luck to you.
I have been putting regular air in my tires for years... and I have, on occassion, been 100% nitro for some of those years, with brand new tires.

First off, nitro benefits are more felt if the conditions when the first load of nitro went in were also pretty dry... perhaps in some sealed laboratory where the atmosphere is 100% nitro and workers in oxygen masks fit the tire to the rim?

Because I've had some brand new tires on nitro lose pressure very, very slowly... and others lose it just as quickly as "regular" air.

Other tires, I've had "regular" air and the psi drop over time was minimal to non-existent.

After several changes on three different vehicles mucking around with nitro and not feeling any cost-benefit out of it, especially since there's no place but the tire shop to get it and I had to check pressures every morning, anyway, I finally dropped it and resigned myself to putting in air every time I put in gas.

Works for me.
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Old 08-15-2011, 03:53 AM   #29 (permalink)
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I check tyres on every 3-4 trips for fuel based on these strict, scientific measures :

1. It has been 3-4 trips since last time, or I can't remember
2. There isn't someone already using it
3. The machine isn't one that charges.
4. There isn't someone who isn't using it who has parked in front of it whilst they buy sweets or whatever other shopping is now available at what should be a normal petrol station.

Otherwise I inflate at home with a machine I got free for joining the AA years ago, and check with a good old fashioned tyre pressure gauge.
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Old 08-15-2011, 07:06 AM   #30 (permalink)
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I would like to test Helium inflation when I get back to the states on my car.
The test would be to see if Helium makes tires run cooler since helium transfers heat something like 6 times faster than air or nitrogen. Fuel economy would be a secondary test with no result expected.
A worth while positive cooling result would be employed for use on my work truck and trailer tires.

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