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Old 07-19-2015, 07:50 PM   #1
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Nitrogen filled tires and summer heat

We are leaving this week for a 1300 mile trip west to California. Although I would prefer not to travel with the fifth wheel in the heat of July/August, it is for a family anniversary so I've got no choice. My question is this: We are taking I-40 to minimize the heat as much as possible, and will hopefully cross the desert in the early morning hours. But my new 323LKTS was purchased in March. The tires are filled with nitrogen, according to the dealer. What effect does tires filled with nitrogen have in the heat? I assume nitrogen would make them expand in heat more than regular old air. And what do I do if I need some topping off pressure wise on the trip? I don't think I can put air into a nitrogen filled tire, can I?
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Old 07-19-2015, 07:57 PM   #2
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The pressure doesn't vary as much with nitrogen than with regular air. I think that's one of its selling points. You're in good shape. Enjoy the trip!
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Old 07-19-2015, 08:03 PM   #3
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We are leaving this week for a 1300 mile trip west to California. Although I would prefer not to travel with the fifth wheel in the heat of July/August, it is for a family anniversary so I've got no choice. My question is this: We are taking I-40 to minimize the heat as much as possible, and will hopefully cross the desert in the early morning hours. But my new 323LKTS was purchased in March. The tires are filled with nitrogen, according to the dealer. What effect does tires filled with nitrogen have in the heat? I assume nitrogen would make them expand in heat more than regular old air. And what do I do if I need some topping off pressure wise on the trip? I don't think I can put air into a nitrogen filled tire, can I?
Nitrogen is an inert gas. It will not expand or contract. If you need to add air, go for it. At this point you should keep an eye on your pressures as adding air will now affect the the pressures with heat.
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Old 07-19-2015, 08:10 PM   #4
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Air is 78 precent nitrogen.
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Old 07-19-2015, 08:12 PM   #5
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I laugh while reading this. Tires and heat have been around for awhile. Regular air is fine. Keep them aired up and don't overload. You don't need nitrogen. Yes you can add regular air to nitrogen filled tires but then why pay extra for nitrogen in the first place.
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Old 07-19-2015, 08:16 PM   #6
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nitrogen does expand and contract with temperture if you want the real reason they use nitrogen is it's dry, while "AIR" has moisture which does make expansion more erratic due to different % of moisture in the air. Nitrogen in Tires : Information about Nitrogen Tire Inflation News, Benefits, Generator Dealers, Location Finder & More
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Old 07-19-2015, 08:19 PM   #7
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If i put helium in my tires, can I haul a bigger load since the helium is lighter?




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Old 07-19-2015, 08:30 PM   #8
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If you need to top them off, you can just add regular old air. No big deal.
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Old 07-19-2015, 10:04 PM   #9
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If i put helium in my tires, can I haul a bigger load since the helium is lighter?




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That just gives a whole new meaning to "balloon tires".
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Old 07-19-2015, 11:31 PM   #10
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That just gives a whole new meaning to "balloon tires".
How would you add sway control to counter the up/down bouncing??

I don't think this is the type of "4-way" sway control Equalizer had in mind.
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Old 07-20-2015, 03:16 AM   #11
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I have nitrogen in both of my vehicles. Pressure stays the same whether its -40 or +40 (c). Yes, it can be topped up with regular air. You are good to go.
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Old 07-20-2015, 10:50 AM   #12
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Nitrogen is something they invented to pay their kids college.

If you paid any extra for nitrogen and it makes you feel better, go ahead and believe that it makes a difference. JMHO
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Old 07-20-2015, 02:22 PM   #13
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Unless your trailer tires were inflated in a vacuum, there is already plenty of good old fashioned air in them, along with the nitrogen. It's a bit of a scam, but there are plenty of believers to keep them in business.
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Old 07-20-2015, 03:26 PM   #14
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Well since EVERY racing team uses it in their tires to maintain a consistent pressure during a race, I guess you could call it a scam on the unknowing public....
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Old 07-20-2015, 03:50 PM   #15
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You don't have the equiptment to use nitrogen in your tires to any real advantage. When
A tire is mounted the space in the tire is full of air. Unless you get that air out all you can do is add nitrogen to the air. Race cars fill and empty the tires many times to reduce the volume of air in the tire. And not all teams do this because they use the increased pressure to advantage. A slack new tire yields a quick restart and the buildup from heat yields the race setup.

Your tires might be marked as nitrogen filled but they are nitrogen filled on top of air.
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Old 07-20-2015, 04:09 PM   #16
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It is a scam on a unknowing public. A racing tire does not remotely compare to a road tire. They are not filled the same or used the same.
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Old 07-20-2015, 04:11 PM   #17
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Modern times snake oil?
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Old 07-20-2015, 04:54 PM   #18
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I googled "nitrogen in tires - good or bad"



Read the reports and make up your own mind.
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Old 07-20-2015, 05:15 PM   #19
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How would you add sway control to counter the up/down bouncing??

I don't think this is the type of "4-way" sway control Equalizer had in mind.
OOOO000ooo!

Overpasses could become a problem!

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Old 07-20-2015, 05:21 PM   #20
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Well since EVERY racing team uses it in their tires to maintain a consistent pressure during a race, I guess you could call it a scam on the unknowing public....

I raced for 28 years and never used nitrogen. It was an unnecessary expense, and I was on a budget. I've known a few guys to use nitrogen over the years, but not many. I'm sure it's much more commonplace in higher forms of racing.

Auto and tire manufacturers know tire pressure will expand with use. They set the spec cold air pressures accordingly.
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