I AM CALLING BS TO NITROGEN FILLED TIRES!!!

chief38

chief38

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As I have posted in another thread, we recently purchased a 2024 Kia Sportage. The car came with the green valve covers on the tires and they also told us the tires were filled with Nitrogen (instead of regular air) to minimize expansion and contraction of the gas which in turn should keep the tire pressure more consistent. I have noticed that is not so and the tire pressure varies from 34 psi in the air conditioned garage to 38 or 39 psi when rolling on the highway. I started to think that they filled the tires with regular air and not the Nitrogen.

Fast forward to 4 days ago when I also purchased a set of 4 new Michelin Defender tires from Costco which went on my Yukon SLT. They too were wearing the green indicator valve caps and I trust Costco when they tell yo the tires were filled with Nitrogen. I am experiencing the same exact effect! They put in 35 psi and when the tires heat up they go to 39/40 pounds. So........ I think the whole theory of Nitrogen stabilizing tire pressure variations are a bunch of cow manure! I see absolutely no difference at all in the performance of the Nitrogen and regular air!

I'd like to hear from others who have experience with the so called Nitrogen filled tire advantage.
 
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chief38 said:
As I have posted in another thread, we recently purchased a 2024 Kia Sportage. The car came with the green valve covers on the tires and they also told us the tires were filled with Nitrogen (instead of regular air) to minimize expansion and contraction of the gas which in turn should keep the tire pressure more consistent. I have noticed that is not so and the tire pressure varies from 34 psi in the air conditioned garage to 38 or 39 psi when rolling on the highway. I started to think that they filled the tires with regular air and not the Nitrogen.

Fast forward to 4 days ago when I also purchased a set of 4 new Michelin Defender tires from Costco which went on my Yukon SLT. They too were wearing the green indicator valve caps and I trust Costco when they tell yo the tires were filled with Nitrogen. I am experiencing the same exact effect! They put in 35 psi and when the tires heat up they go to 39/40 pounds. So........ I think the whole theory of Nitrogen stabilizing tire pressure variations are a bunch of cow manure! I see absolutely no difference at all in the performance of the Nitrogen and regular air!

I'd like to hear from others who have experience with the so called Nitrogen filled tire advantage.
Click to expand...

In the Corvette community which I was a long time member of, many there loved the Nitrogen thing.

As for me I never notice the difference for the most part and thusly saved a little bit of money and time by using common air.

The old rule of thumb is a tire will gain or lose 1 pound of air for each 10 degree change in ambient temperature!
 
Nitrogen filled auto tires are latest auto scam. Air is composed of 78 percent nitrogen. Oxygen accounts for 21 percent, and the inert noble gas argon makes up 0.9 percent of the air. Why worry about the 22 percent non-nitrogen? Just go ahead and fill them with air with 78 percent nitrogen! Your getting 3/4 of the results for free!
 
combat66 said:
We used it for the aircraft tires at Delta. Maybe makes a little difference with moisture,corrosion,extreme pressure variations but mainly non flammable.Like you said for regular cars and trucks not sure if big difference.
Click to expand...

Maybe it makes a bigger difference when ambient temperature hits -40ºF at 36,000+ altitude but here on the ground I see no difference what so ever! More than likely - a marketing thing.
 
When they fill your tires with dry nitrogen, can they purge the air that's in them so you get all nitrogen? Maybe when they're mounted they have a good chance to get most of the regular air out. In A/C work you can evacuate the system and break the vacuum with nitrogen to pressure test. I can't see pulling a vacuum on a tire just to get pure nitrogen. And why would someone who isn't on a racetrack need nitrogen, except "because they can?"
 
Nitrogen Fill SCAM

The Temperature vs Pressure does not depend on the type of gas.

Boyle's law is a gas law, stating that the pressure and volume of a gas have an inverse relationship. If volume increases, then pressure decreases and vice versa, when the temperature is held constant. Therefore, when the volume is halved, the pressure is doubled; and if the volume is doubled, the pressure is halved.

Long long ago I heard the that Indy cars at the Indianapolis 500 used nitrogen in tires.

BUT the reason was that nitrogen was DRY!
Any water content in air could change to steam if a tire got hot.
Water vapor changing to steam would change tire pressure.
One volume of water will produce 1600 volumes of steam.

Real or not that is the tale I was told.

Bekeart
 
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Since putting nitrogen in my tires the air pressure light stopped coming on every time the first chilly day hit.

Not sure if that means it works but it seems to hold the pressure steady and avoid that from happening.
 
I have used nitrogen for as long as I can remember. Car, Trucks Motorcycles etc..
Current car 2022 Cadillac XT5 never had a problem with consistency @35 lbs.
yellow-emoticon-expression.jpg

Serviced by Costco. :D
 
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