I have a couple of cars with nitrogen filled tires. One of them was down to 25 lbs after three years. The tire dealer did not do nitrogen and the dealer wanted 20 bucks for a fill up. So I went to a welding gas place and bought a nitrogen B tank and regulator. 240 out the door. Now I have a lifetime supply of nitrogen.
trogen filled tires
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dusty3030
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I fill my tires with 78% nitrogen. They lose pressure occasionally too, so I refill them.
Ha! I'm enough of a nerd I get it!
2LaneCruzer
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I fill my tires with 78% nitrogen. They lose pressure occasionally too, so I refill them.
Hah. Me too. When I bought my '60 Impala, it had very old WWW bias ply tires on it. When I replaced them with new ones, every one had about a liter of water inside. I have no explanation for the water, but the new tires made it handle a lot better.
I assume there is a reason for using Nitrogen, but I can't imagine that it is anything significant. Anyone know what the rationale is behind this practice? If I'm not mistaken, the tire bodies themselves contain anti-oxidants which should make them last for a loooooong time. The tires on my '59 are 16 years old, and they look almost new. I keep it inside and don't drive it hard, but I can't imagine Nitrogen would be worth the hassle.
oosik
Epic Contributor
Maybe the prior owner was prepping the Impala to do some plowing, ha,ha. So I looked up nitrogen filled tires on the web. Nitrogen is supposed to leak out of the tire slower than air. You don't have to check the pressure as often????? The web site said nitrogen is most often used in tires on high performance auto - drag racers, Indy cars etc. I have a sneaking suspicion that nitrogen filled tires on normal autos is a way of getting more $$$ when you buy new tires.
Then when you have to pressure up a nitrogen filled tire - back to the dealer and pay big bucks or do like the OP did and buy a "nitrogen system".
Then when you have to pressure up a nitrogen filled tire - back to the dealer and pay big bucks or do like the OP did and buy a "nitrogen system".
Deere Dude
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Just got a new car with nitrogen filled tires. As long as the warranty is going they will keep the tires filled with nitrogen and to specs. After that they will have good old fashioned air in them. Darned if I would pay $20 to fill a tire with nitrogen or anything else except maybe rim-guard on my tractor.
k0ua
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Hmmmm. 78% nitrogen for free vs. 100 % nitrogen for $20. Lemme think.
pennwalk
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78% nitrogen
I'd imagine that it is the other 21 percent that is the concern but my tires usually look good on the inside it's the outside that weathers and checks.
Chris
I'd imagine that it is the other 21 percent that is the concern but my tires usually look good on the inside it's the outside that weathers and checks.
Chris
LD1
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I dont buy the hype either. Its compressor air for me too
Threepoint
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$20? Sheesh! Last I checked, Costco Tire Centers all use nitrogen when you buy the tires from them, and top up for free thereafter. Don't know about Sam's Club, but they may do the same.
KennyG
Super Member
The theory is that nitrogen will be less affected by temperature changes than air which is why racers sometimes use it. Absolutely no real world advantage for street use.
Article from Edmunds.com
Should You Fill Your Car's Tires With Nitrogen?
Is Nitrogen Worth It?
The air we breathe is made up of 78 percent nitrogen, 21 percent oxygen and a few other elements. To get the desired benefits for tires, nitrogen needs to be at least 93 percent pure, according to nitrogen service equipment providers quoted on Tirerack.com. So we're basically talking about adding an extra 15 percent of nitrogen and getting rid of as much oxygen as possible.
Based on cost, convenience and actual performance benefit, we don't think nitrogen is worth it. A much better use of your money would be to buy a good tire-pressure gauge and check your tires frequently. This is a good idea even if you have a tire-pressure monitoring system in your vehicle. The warning lights aren't required to come on until you have less than 25 percent of the recommended tire pressure. Having the correct tire pressure will get you many of the benefits of using nitrogen and will ensure that your tires last longer.
Should You Fill Your Car's Tires With Nitrogen?
Is Nitrogen Worth It?
The air we breathe is made up of 78 percent nitrogen, 21 percent oxygen and a few other elements. To get the desired benefits for tires, nitrogen needs to be at least 93 percent pure, according to nitrogen service equipment providers quoted on Tirerack.com. So we're basically talking about adding an extra 15 percent of nitrogen and getting rid of as much oxygen as possible.
Based on cost, convenience and actual performance benefit, we don't think nitrogen is worth it. A much better use of your money would be to buy a good tire-pressure gauge and check your tires frequently. This is a good idea even if you have a tire-pressure monitoring system in your vehicle. The warning lights aren't required to come on until you have less than 25 percent of the recommended tire pressure. Having the correct tire pressure will get you many of the benefits of using nitrogen and will ensure that your tires last longer.
k0ua
Epic Contributor
That should pretty well end this discussion. But, if you are fan and you have lots of money and time by all means fill your tires with nitrogen.
Streetcar
Veteran Member
Nitrogen has larger molecules than oxygen and should leak out of tire slower. The benefit of nitrogen is if you do not check tire pressure as recommended.
CalG
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It's NOT THE NITROGEN that the racers use and you might be getting for your $20
IT"S the DRY GAS that is used to inflate the tires. Water is terrible in regard to it's change of partial pressure with temperature.
In reality, Dry air is every bit as good as "nitrogen". Nitrogen is just any easy way to get dry gas.
So for us in the humid regions, Pump up your tire filling tanks in the cold of winter when the air is dry.
For those in arid SW, just use whatever comes out of the air hose! ;-)
IT"S the DRY GAS that is used to inflate the tires. Water is terrible in regard to it's change of partial pressure with temperature.
In reality, Dry air is every bit as good as "nitrogen". Nitrogen is just any easy way to get dry gas.
So for us in the humid regions, Pump up your tire filling tanks in the cold of winter when the air is dry.
For those in arid SW, just use whatever comes out of the air hose! ;-)
