Nitrogen in the tires?????

[Chemical]

Originally Posted by rockrau

air is 78% nitrogen.

Correct, the remaining 1% are all the other gases we breathe but useless to point out.

[Chemical]

Originally Posted by Warpaint69

Depends on your application really. I've seen the difference in compressed air vs nitrogen with dirt track racing. I've seen compressed air filled tires gain 3-5 pounds of pressure because of heat. Nitrogen doesn't fluctuate like that. Tire pressure change like that really screws with your stagger which in turn messes with your car setup and handling.

True. I didn't consider other applications but temperature plays a role. As I said oxygen molecules permeate through the rubber better than the bigger nitrogen molecules, so if you give it enough time and continue to add air when needed you'll eventually yield a higher percentage of nitrogen in your tires.

But I digress...

[fielderLS3]

The air in my tires is always 78% nitrogen (unless I pump them up on a really humid day....then its about 75-76%).

[Macrackie]

One nice part of nitrogen is dry air. We have line dryers all over our shop to keep water out of our tires and tools. Many of tires I have dismounted have a significant amount of water in them. I also seem to replace tire monitors more often or these "wet" tires.

If you were racing then yes the benifit is there. Otherwise no short of its perfectly dry.

[joeybsyc]

I add a few drops of snake oil in mine.. works just as well as nitrogen.

[IPT]

Originally Posted by joeybsyc

I add a few drops of snake oil in mine.. works just as well as nitrogen.

[Micawber]

When I bought the car it included a road hazard warranty with the nitrogen filled tires and the dealer refills them for free. I think it's just a marketing gimmick to keep me going back to the dealer, but the tire warranty already took care of a roofing nail once with no questions or hassle. The dealer has given me competitive or better prices on other work too so I'm going along with it.

[axis]

While it isn't stupid question, it is one that has been covered MULTIPLE times. Just typing nitrogen in the "search this forum" box gives you pages of results.

[pooch]

Mine have the green stems so I'm assuming that is has it.

[DJ UNKNOWN]

Originally Posted by Mouse6.2

If you can get it for free, sure go ahead. I have used it and didn't see any difference at all. To me it is a waste of money, save the cash for other mods. It didn't make a difference in tire pressure at different temps from what I experienced.

This I agree with 100%

[blufin]

My understanding is that the factory uses nitrogen because of several reasons. It is dryer than air so it condenses less, which in turn, will not foul the tpms. I was also told that the molecules are larger, therefore, less will escape from the tire, keeping the pressure more stable for a longer period.

Just my $.02