texasviany

My tire pressures were low so I added some more air, but then realized that I had nitrogen in the tires from the dealer. I plan to just leave it. To fix the issue, the tires would need to be dismounted right?

These tires don't hit the track and I understand the advantages of Nitrogen. I am more curious about the "cocktail" floating around in my tires!

LexVan

U r fine. The air u added is already about 78% nitrogen.

Bill Lehman

Air is 80% Nitrogen. I wouldn't be concerned about your mix.

zedcat

Not worth worrying about imo. Air is 78% N2. If you added a few psi, the amount of O2, CO2, water vapor, added is small. Even for track, like DEs, I don't think there's any advantage to N2. Typically everyone in the paddock is using portable air compressors.

Marine Blue

No need to do anything. I had nitrogen in my tires and had to switch to air since I didn't have access to nitrogen. Nitrogen did seem to maintain pressure over a broader temperature range but no other advantages that I can see. As others said, most of the air is nitrogen.

LehmanZ06

I can't believe people call for the nitrogen scam.
If you are landing a F-18 on a carrier go nitrogen.
If you are a NASCAR team go nitrogen.

Otherwise AIR !

FullThrottle64

If you're actually tracking your car and driving it hard, there is a HUGE advantage to using nitrogen. It has to do with pressure growth vs. temperature, both minimizing the increase and maintaining consistency. If you have a significant difference in the amount of water vaport between various tires, you will have differeing pressure increases at working temperatures; you might set them all at 30 cold, but find that there is 2-3 lbs difference once they heat up on track. This can make it impossible to tune the handling.

A N2 bottle (lease) and regulator costs less than a tire.

Dr.Bill

Don't worry about it. Unless you have the fancy wheels with two valve stems to purge and flush out the tire, it didn't have 100% nitrogen anyway.

orthojoe

Exactly. Unless you have 100% nitrogen, which is not easy to get/do, you won't get the benefits. Fifth gear did a nice test. The 'nitrogen filled' tires actually did worse. LOL

texasviany

I did not order nitrogen...it came that was from the dealer. I refused to pay for it.

texasviany

I forgot...the VW dealership pulled that on my Golf R as well!

Marine Blue

I also didn't pay for it, the dealer offered it at no charge. The process took 45 minutes, the equipment connects to all four tires and does some type of flushing process where it bleeds and fills the tires. I should have asked exactly how it works but never had the chance.

terbiumactivated

My car came with it, a tire shop in town will give me free fills of nitrogen top offs but then you have to go there every time you check the tires. I added air, cannot tell any difference at all.

Macster

Not sure the tires have to be dismounted. The "air" in them has to be purged, should be, to get the full benefit of nitrogen only inflation, but even this may be overkill as with no pressure but atmosphere the tire doesn't contain that much air (or water vapor) to pollute the nitrogen fill.

I'd say the mix of nitrogen and air is probably nothing to lose any sleep over.

Whether at some point you want to go through the process and expense of going the nitrogen way again or just sticking with plain old shop air for your tires is up to you.

ByByBMW

The real issue is the amount of moisture in the air you use. It's the moisture that causes the largest fluctuation in pressures. Dry air vs dry nitrogen you wouldn't be able to measure since all gases adhere to the ideal gas laws.