Nitrogen in your tires?
Safety Car
Joined: Sep 2005
Posts: 4,060
Likes: 101
From: Southeast, Tennessee
St. Jude Donor '09 thru '26
don't know where you live, but if all they want is $5, go for it. it reduces temp, doesn't expand and contract as badly as regular O2, is retained in the tire much better than regular air, NASCAR has been using it in their race cars for the past couple of years. if the price is right, it certainly can't hurt.
Melting Slicks
Joined: Dec 2000
Posts: 2,130
Likes: 1
From: mesa,az
seems like a waste of money to me i used to use it at the track in my drag bike tires but only because it was there for my airshifter anyhow. can't see it making any difference in your street car tires.
Race Director
Joined: Dec 1999
Posts: 16,945
Likes: 9
nitrogen molecules are larger than air and therefore don't permeate through the tire so you don't have to check the rpessure as often, also it's "dry" so there's less pressure change with temperature. I say go for it.
Melting Slicks
Joined: Sep 2004
Posts: 2,655
Likes: 19
Since air is about 80% nitrogen anyway, I'm betting any benefit is from being dry.
Gary
Gary
Originally Posted by Twin_Turbo
nitrogen molecules are larger than air and therefore don't permeate through the tire so you don't have to check the rpessure as often, also it's "dry" so there's less pressure change with temperature. I say go for it.
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Michael S. Palmer
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
I've been using it for years. Nitrogen doesn't change as much in pressure with temp changes. Here in the southwest US pavement temps canbecome severe in the summer when the air temp exceeds 120 without a cloud in the sky. I don't even go down to Laughlin Neveda in the summer anymore. Las Vegas might be only 110 -112 F Laughlin was 124. My Vette without A/C is terrible
Drifting
Joined: Oct 2004
Posts: 1,496
Likes: 1
From: Lafayette Louisiana
Originally Posted by AirMarcus
Is anyone using nitrogen instead of air in your tires? I have heard that it decreases tire temps and keeps pressure longer. Is it worth the xtra 5 bucks?
Race Director
Joined: Feb 1999
Posts: 19,659
Likes: 34
From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
There is a local tire store around here advertising better gas mileage out of the nitrogen fill. They will do the fill for $5 per tire also. I don't know anyone that has done it though.
Burning Brakes
Joined: Aug 2005
Posts: 1,209
Likes: 87
From: Putnam county NY
2025 c3 ('68-'73) of the Year Finalist - Unmodified
2024 C3 of the Year Finalist - Unmodified
Basically, the air in your tires is about 75% nitrogen anyway. For street driving, I highly doubt it will make any difference.
Melting Slicks
Joined: Jul 2005
Posts: 2,545
Likes: 3
From: 406ci SB, AFR 180 Heads - 490 HP @5,600 RPM 529 lb-ft @ 4,100 RPM
If it was proven that nitrogen really did improve gas mileage, I'm sure the automakers would be using it on all new cars, so they could post higher MPG on their window stickers.
