Guys - Probably a dumb question but want the pros/cons in regards to both and who runs what and why. Somebody has mentioned that nitro helps tire longevity but is that realistic when you have a "heavy" foot? I can get tires filled with nitro for about $7-$9 a tire here locally. Good or Bad idea?

DG

Our atmosphere is 78.9% nitrogen.

I'm done here.

If you have money to waste, why not? In all seriousness, i don't think it's worth it.

Aaron

I've heard one pf the pro's is that it holds pressures better across a much wider temperature range. Forgot what else. It won't make your tires last longer. If it does, not on these cars the way we drive em. Maybe if you left your tires on for many years. Also leaks out less possibly?

Basically check your pressure occasionally and save your money.

No matter which gas you fill your tires up with, it will expand under temperature:

PV=NRT

P=Pressure
V=Volume
N= number of moles of gas
R=reynolds number
T=temperature

Now with that being said, there is 1 advantage to nitrogen, which is a dry gas, think no water here. So if you left your tires on for about 5-6 years, your rims would still look good


Would I ever do it, HELL no, save the money.

Thanks Gents! Appreciate the feedback......

Information = $$$$ saved

I fill my tires with helium.

there are advantages to it. whether or not you will really notice is another story. for the average person the places you will notice it most is, the fact that it is effected by temperature much less than regular air. also its moisture less so it will cut down on oxidation on the inner wheel. so the benefits are a lot greater for people in the north east and other places that have huge temperature fluctuations through out the year.

Thanks for giving away Nascar and NHRA's #1 hidden secret to everyone!!!

I once convinced some dumbass on a local forum years ago that I was able to cut reaction times down or launch harder or some ridiculousness due to helium being lighter than air, and therefore helium = lighter car. and he bought it, hook, line, sinker. lol.

Are you implying that I'm a dork for having all these helium balloons in the trunk? ... Makes my car definitively lighter and rear suspension works less, so my rear tires last longer.

i don't think it's worth it.

You are exactly correct. But that equation does not include the water moisture. That is the big variable. As you say, using nitrogen to fill tires is just an easy way to get dry air.

Obviously, if you used hydrogen or helium, you get problems with it leaking out. But dry air should work fine.

Your home low end compressor does NOT eliminate the moisture. But I use it anyway. Unless you are doing a track day it likely does not matter.

I use awesomonium...

I had some ricer pull his tail lights and boil them cause I told em that's how everyone was getting clear tail lights. The color boiled out. Lol

I have heard similar stories where idiots soaked their tail lights in gasoline to make them clear!!

NO, NO, NO

ANY gas will be effected the same my friend. You can NOT change the laws of physics.

The ONLY way that air would be effected more is IF there was a high enough water concentration, and IF you made you rims hot enough to boil the water out of the air. This just isn't going to happen on a street car, EVER.

One last time:

PV=NRT for ALL gases and mixtures of gases.

Logic is not allowed here. Nitrogen > Not Nitrogen

That's right. And one of those laws is: washing you car makes it faster.

And atleast 3 thenths quicker in the quarter

I run nitrogen in all of my cars and bikes. I have a nitrofill machine at my dealership that I get to use for free and to be honest the only way I would actually pay to have it is for my street bike. The difference in tire pressure fluctuation is huge in my eyes when you have a bike taking turns at 130+ mph. With regular air I could see my rear tire pressure increase at much as 3 psi after a very hard lap, which doesnt sound like a lot but when you are pushing the tires to their furthest lean point psi is very important. With nitrogen I can run a full ***** out lap at VIR and only see an increase of 1-1.5 psi. Like I said in my cars I only run it because I get it for free and because my 2 mustangs sit in the garage a lot and it slightly decreases the amount of air lost in the winter time with the larger nitrogen molecules. save your money or find a buddy at dealership to let you use their machine lol