Nitrogen vs Air in your tires - Page 2 - Chevy Malibu Forum: Chevrolet Malibu Forums
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post #11 of 16 (permalink) Old 12-17-2015, 07:09 AM
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Re: Nitrogen vs Air in your tires

I use air. Always have.

My issue with pure nitrogen is that air is 78% nitrogen, I don't think there is enough difference between them to make a difference. Most people will replace the tires before oxidation inside causes an issue. Remember the treads are still exposed to the elements. What makes sense in racing doesn't always make sense on the street.

As far as mileage difference after changing tires, I experienced that issue when I replaced the tires on my Colorado. The new tires are a different formulation of the rubber compounds (different manufacturer) and I lost 2 MPG afterwards. What I lost in mileage from the General tires that GM put on the truck, I more than make up for in handling and wet weather capabilities with the Firestone tires that I replaced them with.

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post #12 of 16 (permalink) Old 12-17-2015, 11:10 AM
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Re: Nitrogen vs Air in your tires

My next ones may use neither...
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post #13 of 16 (permalink) Old 12-17-2015, 03:07 PM
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Re: Nitrogen vs Air in your tires

I believe that tire is technically still filled with air. :P


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post #14 of 16 (permalink) Old 12-17-2015, 03:47 PM Thread Starter
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Re: Nitrogen vs Air in your tires

What they need to do is design it so it becomes a fan (aka air pump), then direct the output to blow downstream into the exhaust, helping to evacuate the gases. Might need to upsize the pipes to account for increased air volume.


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post #15 of 16 (permalink) Old 12-17-2015, 05:43 PM
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Re: Nitrogen vs Air in your tires

Let's assume all the claims of nitrogen filled are true. Regular air is 78% nitrogen. So if the big advantage is the larger nitrogen molecule doesn't leak out, how bout instead I fill the tire with regular old air, and then by the second, as the non-nitrogen molecules leak out the percentage of nitrogen in my tires will be higher and tada, nitrogen filled tires.


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post #16 of 16 (permalink) Old 12-17-2015, 09:26 PM
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Re: Nitrogen vs Air in your tires

Quote:
Originally Posted by cp-the-nerd View Post
I'll happily believe that you got improved pressure retention/stability, but getting better tire wear, handling, and MPG would literally defy physics. Those things are only affected by pressure, and 35 psi is the same 35 psi no matter what gas fills the tires.

Food for thought:
-Improved MPG requires higher air pressure (harder tire = less rolling resistance).
-Improved handling requires lower air pressure (increased contact patch).
-Improved wear depends on the specific tire model's goldilocks pressure.
I thought all the claims for handling were false until I switched to nitrogen and saw it for my self. I know the wear pattern was different after refilling with nitrogen, my assumption on why handling and mpg's were better was less pressure changes while driving. I drove the car fast and really pushed it to the limits on corners.

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