Nitrogen

[Tcnarber]

Help a novice with benefits of nitrogen filling?

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[Coyote]

Basically nitrogen is a more stable inert gas. It expands less from the heat of the road so your tires don't read 32 cold then 36 warm. The ideal is greater control over tread wear..

I know there is something I'm missing but the expansion thing is what I always think of when I see green valve caps

 

[RubyRed15]

It benefits your dealer in making some extra money.

 

[2Cool]

I use a 78% nitrogen/21% oxygen mix in mine, with some trace gasses.

I call it air.

 

[TNcoupe]

Not really beneficial in a street car unless you have an N2 tank at home. N2 doesnt expand as much as air but it still does. I race dirt oval karts and typically start at 4.5psi N2 in right front and after 10 laps its a little over 6psi but 1.5psi in that little kart tire is a big difference. That tire sees the most work though.

 

[Grimace427]

Wasted money. My dealer sold NitroFill for a little while then gave it up as even we knew it was wasting our customer's money. Every service(once a year) they still needed tire inflation.

 

[101charley]

Extremely small difference. Oxygen will slowly degrade the rubber with the potential for pressure loss over time. But frankly the difference would be very slight. Free N2 fill is fine. But not if it is an extra charge.

 

[rdycoss1]

My dealer tried to sneak in a "tire maintenance package" for 600$ in the deal (for my previous 2014 V6 Mustang). When I noticed and asked about it, it turned out to be a "nitrogen refill" package - because "you know, performance cars need it". He wasn't too surprised when I requested him to remove it from the option list, though...

 

[Grimace427]

My dealer tried to sneak in a "tire maintenance package" for 600$ in the deal (for my previous 2014 V6 Mustang). When I noticed and asked about it, it turned out to be a "nitrogen refill" package - because "you know, performance cars need it". He wasn't too surprised when I requested him to remove it from the option list, though...

Did that package include road hazard warranty?

 

[rdycoss1]

Did that package include road hazard warranty?

Nope, nitrogen refill and tire repair (excluding replacement) for the 3 years warranty period.

 

[Chameleon]

Snake oil.

 

[H1 GT]

Air and nitrogen have the exact same characteristics when it comes to pressure change related to temperature... The expansion does not change. Roughly 1psi for every 10 degrees.

Nitrogen can hold less moisture, is better for the rubber, and better avoids corrosion. That's it. Nothing else. Not really necessary on a car of this caliber.


I've looked into this a lot because "why don't aircraft tires expand when they're high?" The pressure difference in the tire compared to ambient is massive @30k feet, but the temperature is also very low, ~-70°F. So basically they cancel eachother out. Biggest thing is corrosion prevention; for the wheels and for the rubber.

 

[dgc333]

Even corrosion reduction is a non issue in a car tire. I have never I'm my 40 years of driving had corrosion start inside the tire. Plenty of times where it has started on the outside and worked it's way in.

 

[B-52 Jetman]

The only difference I've seen & this was on my wife's 2011 Nissan Murano. She's had 3 Murano's over the last 6 years, the 1st two had regular air in the tires, this last one had nitrogen. The one thing I noticed about Nissan's TPMS is that they are very sensitive. The other two previous Murano's, I'd have to put air in the tires about 3-5 times/year. The 2011 which had nitrogen from the factory, I only had to bump the tire pressure up about once/year. Is it worth it...not to me.

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