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Old 11-18-2014, 07:20 PM
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Nitrogen and TPS

This is my first winter in my Jeep

I have the TPS and on cold mornings get warnings the tires are low

I know this is to be expected , but my question is will filling with Nitrogen make the tires less sensitive to
pressure changes due to temperature?

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Old 11-18-2014, 07:32 PM   #2
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I fill my tires with 78%. Nitrogen all the time. And they need to be checked periodically.

Internet diagnostics..........unless you know exactly what to describe, and how to describe it, no one knows what exactly what to tell you. And if you DO know exactly what to describe and how to describe likely don’t need the internet answer!!!!!!! LOL
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Old 11-18-2014, 07:36 PM   #3
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Originally Posted by JEEPDON
I fill my tires with 78%. Nitrogen all the time. And they need to be checked periodically.
Lol. Technically with normal air being 78% you may see a tiny difference but not much. It's cheaper and easier to just pump up your tires. You should only have to adjust it a few times a year as long as your tires don't leak. I adjust mine every time I go off road but if I don't go for a long time then I adjust once every month or 2
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Old 11-18-2014, 07:37 PM   #4
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I belive that part of the 'hype' around nitrogen is that because it's inert, it is not as (if at all) susceptible to temperature changes, expanding/contracting like air.
I say hype because IMHO "selling" you nitrogen for your tires thru fear of rusting out your rims or the danger of exploding tires on hot days if using 'old fashioned' air, is dishonest (yes, these are what I have been told by the 'tech's trying to sell me nitrogen) ... Nothing wrong with it, but I would not pay for it any more than I would pay for air.
But to answer your question, YES ..
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Old 11-18-2014, 07:38 PM   #5
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Yay another Nitrogen tire thread!

You are going to get tons of people posting who swear up and down that Nitrogen does anything and everything, including maintain constant pressure in any temperature.
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Old 11-18-2014, 08:39 PM   #6
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Slightly. The difference regarding a Nitrogen and Air fill, which is 78% that has already been stated, averages out to be 1.3 lbs. If you check your tires at least every 3-4 weeks max, the 1.3 lbs. essentially becomes meaningless. If you have to pay for it, it's not worth the cost. If the dealer offers a "free" top off that's just another method of getting you in the door so that they can up-sell additional service that you may or may not need. Dealers are becoming better at getting customers in the door through give aways such as cheap or no cost oil changes and nitro fill in tires for example. Most have to in order to survive. The goal is to get someone in the door so that the larger ticket items/service can be sold. I would give away an oil change if I then charged someone 4-6 hundred for a dif. fluid change, for example.
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Old 11-18-2014, 08:54 PM   #7
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Old 11-18-2014, 09:27 PM   #8
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Originally Posted by Makaha View Post
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Old 11-19-2014, 05:34 PM   #9
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nitrogen expands less when heated.

this makes sense in aircraft tires, F1 tires, or nascar tires that see hundreds of degrees in short bursts, but it makes no sense on a street tire that isnt going to see much more than 30 degrees above ambient temperature.
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Old 11-20-2014, 11:29 AM   #10
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For the cost a few top-offs at a shop (who is quite possibly just using air) you could buy your own little compressor.

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