986 Forum - for Porsche Boxster & Cayman Owners

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-   -   running nitrogen? (http://986forum.com/forums/boxster-general-discussions/10084-running-nitrogen.html)

dhpeck 03-15-2007 10:18 PM

running nitrogen?
 
Anybody using nitrogen to fill their tires? I'm to this on my daily Lexus driver and it really smoothes out the ride.........

should I fill the boxster as well??

John V 03-16-2007 03:56 AM

It smooths out the ride? :confused: Uh... OK.

bmussatti 03-16-2007 05:36 AM

I use nitrogen fill. I have been very happy with the air pressure stability over large temperature gradient. The tires did great during the 5 month winter storage too.

ricklin 03-16-2007 05:37 AM

I might suggest that the new tires that the nitrogen is inside is what smoothed the ride.
For the average street driven car nitrogen is nothing more than a marketing gimmick.

Tool Pants 03-16-2007 09:13 AM

Air is about 80% nitrogen. The oxygen molecules in air are smaller than the nitrogen molecules, so the oxygen escapes from the tire faster.

So if you fill your tires 120% the oxygen molecules will escape and you are left with 100% nitrogen.

Free nitrogen for your tires....

insite 03-16-2007 10:10 AM

Quote:

Originally Posted by Tool Pants
Air is about 80% nitrogen. The oxygen molecules in air are smaller than the nitrogen molecules, so the oxygen escapes from the tire faster.

So if you fill your tires 120% the oxygen molecules will escape and you are left with 100% nitrogen.

Free nitrogen for your tires....

but you'd still have moisture in the tires. elimination of the moisture is the primary reason for filling tires w/ dry nitrogen.

BuffaloBoxster 03-16-2007 11:53 AM

How quickly we all forget...

http://986forum.com/forums/boxster-general-discussions/8846-nitrogen-filled-tires.html

Tool Pants 03-16-2007 10:11 PM

I remember that thread. Said I was going to get tires from Costco for my 1988 Toyota pickup.

Well, I did, last month. 5 tires. Told the guy I did not want green caps. Guess he thought I meant it.

When I picked up the truck the 4 mounted tires had black caps. The spare had a green cap. Told the guy that gave me my keys that I was going to have the tires tested to see what was really in them. When I got home I took the green cap off the spare and put on a black one.

Only person on earth with Costco tires and no green caps.

Took a picture of the nitro machine.

Checked the wheel nut torque and tire pressure when I got home. The receipt has the correct tire pressures listed as 29 psi for the front and 35 for the rear, but that is not what was in the tires. The receipt has the nut torque listed a 140 foot pounds - but my truck is supposed to be 76 foot pounds. :eek:


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