Nitrogen filled tires?

[Ronzi]

Originally Posted by bmussatti

...I think the Honda dealership was trying to do you a favor by NOT adding air to your nitrogen fill...

I'm sure you're right. I asked the Honda rep how the tires would have been filled with nitrogen, and he said I probably got the tires at Costco, etc. I wondered why they put on those green valve caps. Now I know. Thanks.

[Tool Pants]

When I see a vehicle with green valve caps I think Costco since Costco (at least the ones where I live) has been using nitrogen for years. My local dealer has also started using it. I consider it a gimmick on a street vehicle.

My 1988 Toyoya work truck needs new tires. Last set was put on by Costco, but that was years before they started using nitrogen. After the holidays I will have Costco put on another set on the truck.

Then I'm going to take the green caps off the truck and put them on the Boxster.

Then I'll let all the air out in the Costco parking lot and get free nitrogen in the Boxster.

[thomschoon]

Geez, the reason I thought they filled with Nitrogen was that it was "dry" and therefore provided a more even pressure in relation to the temp. Essentially your tire pressure stays stable as the tires warm up as there is no water to vaporize and expand, thereby provide more predictable handling. As for mixing with air, dont we breath around 80% nitrogen anyways and I havent burst in to flames lately

[djomlas]

take a lighter and place it behind ur rear when ure gasy, im sure ull see mad flames
make sure u wear green underwear after that

[BuffaloBoxster]

Nitrogen's advantage in racing is that it is muchg more predictable in how the pressure changes as the tire heats up. On the street it's a gimmick and is of no special value.

[Chills]

Originally Posted by djomlas

take a lighter and place it behind ur rear when ure gasy, im sure ull see mad flames
make sure u wear green underwear after that

That's usually methane you're burning, not nitrogen.

[Topless]

You could always go the ultra- performance route and fill your tires with Helium to reduce your unsprung weight.

[MNBoxster]

Originally Posted by thomschoon

Geez, the reason I thought they filled with Nitrogen was that it was "dry" and therefore provided a more even pressure in relation to the temp. Essentially your tire pressure stays stable as the tires warm up as there is no water to vaporize and expand, thereby provide more predictable handling. As for mixing with air, dont we breath around 80% nitrogen anyways and I havent burst in to flames lately

Hi,

Nitrogen (N² in molecular form) is essentially (but not truly) inert and not easily reactive. It is non-flammable and referred to as a Dry Gas because it doesn't absorb moisture easily (though it does absorb some) as you point out. This means it expands less than a standard Air mixture, and is more consistent not varying with changes in Ambient Humidity.

But, another advantage is that Nitrogen molecules are essentially larger and therefore will diffuse more slowly from a porous material (such as a Tire) than Air would.

Normal Air is mainly Nitrogen and Oxygen (other gasses as well, but in insignificant amounts for this discussion). About 78% Nitrogen and 21% Oxygen. Since the Oxygen Molecule (O²) is essentially smaller in diameter, it can leak easier and since it makes up basically 1 in 5 of the molecules in a given volume of Air, the tire can lose pressure more easily than if it were filled with Nitrogen alone...

Happy Motoring!... Jim'99

[David N.]

Quote:


"where did you get the compressor and what type is it?"

Originally Posted by jeffsquire


Ignore my post, I was just being ignorant and poking fun. In paintball there are two main mixtures of gas used for propellant, CO2 and "Nitrogen", which is really just another name for compressed air. I figured as little difference as could be expected from a mixture that is 100% nitrogen vs. 80% in air, someone offering you 'nitrogen' was just pulling your leg.

Thankfully the vastly more qualified populace of 986forum was more helpful than I..

-David

[Tool Pants]

Son, it is all about profits.

http://www.nitrogentiremachine.com/

http://www.nitrofillnow.com/

Do a google search for nitrogen tire profit.

[RAZOR1]

Originally Posted by Tool Pants

Son, it is all about profits.

http://www.nitrogentiremachine.com/

http://www.nitrofillnow.com/

Do a google search for nitrogen tire profit.

WOW! That pretty much says it all I think.

Thanks Toolpants...