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02-24-2014, 08:17 PM
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#1
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Motoring
Join Date: Sep 2013
Posts: 254
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Nitrogen in Tires
When we bought our FR3 they filled the tires with Nitrogen. Oh no, not another tire post...
Anyone know what the benefit of this is/was? They said smoother ride, I'm not convinced. Also, if I need to top off, can I put air in now, or do I have to stick with Nitrogen.
Your thoughts are appreciated.
Grotto
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02-24-2014, 08:22 PM
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#2
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Senior Member
Join Date: Nov 2013
Location: Seaford, De
Posts: 2,377
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air filled tires change pressure with temperature change. Rule of thumb about 1psi per 10 degrees. Nitrogen pressure stays constant regardless of temp.
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David & Lynn 2014 Coachmen Chaparral Signature 327 RLKS 2016 Ford F350 Lariat CC Dually
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02-24-2014, 08:22 PM
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#3
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Senior Member
Join Date: Oct 2013
Location: Texas
Posts: 337
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You can add air. Nitrogen allegedly keeps pressure longer and it is drier than air preventing issues with TPM sensors. I have it in my tires and needed to add air after 3 months so I'm not really sold.
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2014 Freedom Express 320BHDS Liberty Edition 50th Anniversary
2005 F250 Lariat SuperCrew 6.0 PS Diesel
2004 Excursion Limited 4x4 6.0 PS Diesel
2000 Excursion Limited 7.3 PS Diesel Sold:crying
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02-24-2014, 08:26 PM
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#4
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Senior Member
Join Date: Jul 2012
Location: Orange Texas
Posts: 790
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Nitrogen has larger molecules and won't leak down as much and that tires will run a little cooler. Problem as I see it, every time you put a gauge to the valve stem you let a tiny amount out and eventually you have to air up again. You then must find a nitrogen station which may be hard to find or use air. Using air will dilute the nitrogen. Air is 78% nitrogen. IMO, a waste of money.
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2013 Crusader 330 MKS
2013 Chevrolet Silverado LT 2500 D/A
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02-24-2014, 08:26 PM
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#5
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Senior Member
Join Date: Jul 2012
Location: Dunedin, FL.
Posts: 567
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Nitrogen has a larger molecules structure. So it takes longer for it to leak out of tires and maintains pressure better. Just use air and check pressures every time you go camping.
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2014 XLR 27 HFS
2010 F250 4x4 Crewcab Turbo Diesel
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02-24-2014, 08:28 PM
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#6
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Grape Escape
Join Date: Sep 2006
Location: Southern Ontario
Posts: 774
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Just another gimmick to take your$$$$$$. Get 10 more miles per gallon as well........
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2008 Cardinal 30RKLE 5th wheel sold
2006 Rockwood 2607, 2001 Traillite
55 nights 2009, 53 for 2010
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02-24-2014, 08:28 PM
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#7
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Senior Member
Join Date: Nov 2013
Posts: 1,947
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and it seems a bit silly that they put nitrogen in trailer tires...a little inconvenient to haul the trailer to a tire shop to add nitrogen down the road when they will require it, eventually at some point they will...in my opinion its only beneficial for the first little while of ownership, till that top up is required... concept of nitrogen makes sense, but at least when its done on your TV tires or car tires you can wheel it into a location easily for the top up.
Rick
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02-24-2014, 08:33 PM
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#8
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Senior Member
Join Date: Nov 2013
Location: Seaford, De
Posts: 2,377
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Quote:
Originally Posted by WFD
and it seems a bit silly that they put nitrogen in trailer tires...a little inconvenient to haul the trailer to a tire shop to add nitrogen down the road when they will require it, eventually at some point they will...in my opinion its only beneficial for the first little while of ownership, till that top up is required... concept of nitrogen makes sense, but at least when its done on your TV tires or car tires you can wheel it into a location easily for the top up.
Rick
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I've always thought same thing. Plus, why are we wasting it in cheap Chinese tires. Keep the nitrogen and give me some quality air filled tires.
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David & Lynn 2014 Coachmen Chaparral Signature 327 RLKS 2016 Ford F350 Lariat CC Dually
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02-24-2014, 09:43 PM
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#9
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Senior Member
Join Date: Feb 2013
Location: Niles,MI
Posts: 127
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I hate when they take my black caps and put on them ugly green ones, oh and I think the nitrogen is worthless too.
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2014 FR3 30DS
2014 JEEP WRANGLER WILLYS
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02-24-2014, 10:03 PM
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#10
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Senior Member
Join Date: Jan 2012
Location: Keller, Texas
Posts: 6,090
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Whether nitrogen in tires is worth the hassle or not is an ongoing discussion item.
If I might, I suggest the OP do a search of the topic here as there are many points of view and opinions given. One of the threads was started on 12-2010 and there are several more.
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02-24-2014, 10:16 PM
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#11
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Senior Member
Join Date: Oct 2013
Posts: 496
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FYI, regular air is 78% nitrogen.
I had a talk with my dealer's service guy. He told me that he asked Forest River if, when mounting the tire new, they evacuate the existing air out of the tire and create a vacuum before filling with pure Nitrogen. The response was no. So they are adding Nitrogen to a tire already full of regular air. IMO, gimmick.
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2001 Ford F250 7.3l converted to F350 specs
2014 Flagstaff 8528RKWS
2006 model year Border Collie
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02-24-2014, 10:16 PM
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#12
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Senior Member
Join Date: Jul 2013
Posts: 120
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Quote:
Originally Posted by davel1971
air filled tires change pressure with temperature change. Rule of thumb about 1psi per 10 degrees. Nitrogen pressure stays constant regardless of temp.
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Noooooooooooooooooooooooope.
PV = nRT
Cant defeat the laws of physics. And your rule of thumb actually applies to N2 filled tires. Air in tires will change about 2 psi per 10 degrees. Ive got, oh, a few gigs worth of data to back this up too.
http://www.tirerack.com/tires/tirete...jsp?techid=191
Overall, nitrogen isnt worth the hassle to put in your tires unless you really enjoy a lightened wallet, or youre using it for a critical application like race tires. Full disclosure, I do use it in my race tires and vacuum them prior to filling with nitrogen simply because it is more reliable and consistent when determining pressure climb in varying conditions. Otherwise, I dont bother with it in anything else.
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02-25-2014, 02:18 AM
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#13
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Senior Member
Join Date: Jan 2014
Location: On the Road
Posts: 128
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Had it in my Nissan 350Z. Worthless IMO and switched back to air. Got low tires just as often. Supposedly the nitrogen makes the psi more constant in tires regardless of temperature. Didn't find it to live up the hype at all as I frequently had 8-10 change in psi from early cool morning to warmer afternoon.
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2013 F350 Lariat 6.7 Diesel DRW
2013 Rockwood Ultralite 2608 WS
2013 Days Camping: 61
2014 Days Camping: 200+
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02-25-2014, 02:46 AM
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#14
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Engineer of Crazy Train
Join Date: Sep 2012
Location: Tiverton, RI
Posts: 1,585
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We use to put nitrogen in the race car tires. Caused less pressure buildup when they heated up keeping the stagger consistant. Of course, we had nitrogen cylinders for the air guns.
Sent from my Samsung Galaxy Note 2 using the FRF mobile app.
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02-25-2014, 03:39 AM
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#15
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Site Team
Join Date: Nov 2010
Location: Northeast Louisiana
Posts: 33,933
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Quote:
Originally Posted by cucamelsmd15
Noooooooooooooooooooooooope.
PV = nRT
Cant defeat the laws of physics. And your rule of thumb actually applies to N2 filled tires. Air in tires will change about 2 psi per 10 degrees. Ive got, oh, a few gigs worth of data to back this up too.
http://www.tirerack.com/tires/tirete...jsp?techid=191
Overall, nitrogen isnt worth the hassle to put in your tires unless you really enjoy a lightened wallet, or youre using it for a critical application like race tires. Full disclosure, I do use it in my race tires and vacuum them prior to filling with nitrogen simply because it is more reliable and consistent when determining pressure climb in varying conditions. Otherwise, I dont bother with it in anything else.
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I'm not sure I'm following you here. The Tire Rack article states the rule of thumb that tires inflated normally, will have a pressure change of ONE psi per 10 degrees of temperature change.......as copied below:
"Tires are typically inflated with air that’s a combination of roughly 78% nitrogen (N2), 21% oxygen (O2) and 1% miscellaneous gases. And since all gasses expand when heated and contract when cooled, tire inflation pressures rise and fall with changes in temperature by about one psi (pound per square inch) for every 10° Fahrenheit change in temperature. This is one of the reasons it’s recommended that tire pressures be checked early in the morning before ambient temperatures, the sun's radiant heat, or the heat generated by driving causes the tire pressure to rise."
Were you linking to the Tire Rack article to prove or disprove your statement of 2 psi per 10 degrees?
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2011 Flagstaff 831 RLBSS
A 72 hour hold in a psych unit is beginning to intrigue me as a potential vacation opportunity.
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02-25-2014, 06:36 AM
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#16
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Senior Member
Join Date: Jul 2007
Location: Jefferson County, MO
Posts: 5,452
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Our Silverback came with nitrogen in the tires and the first two years, including over winter storage, I never had to add air to the tires. I finally had to put a couple of pounds of air in each tire over this winter. If your RV came with nitrogen then enjoy the benefit of not having to air up the tires all the time.
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Bob and Joyce
2013 CC Silverback 29RL
2010 Ford F250 XL Crew Cab 6.4 liter diesel
ATU Local 788
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02-25-2014, 07:22 AM
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#17
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Senior Member
Join Date: Jul 2013
Posts: 120
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Quote:
Originally Posted by wmtire
I'm not sure I'm following you here. The Tire Rack article states the rule of thumb that tires inflated normally, will have a pressure change of ONE psi per 10 degrees of temperature change.......as copied below:
"Tires are typically inflated with air that’s a combination of roughly 78% nitrogen (N2), 21% oxygen (O2) and 1% miscellaneous gases. And since all gasses expand when heated and contract when cooled, tire inflation pressures rise and fall with changes in temperature by about one psi (pound per square inch) for every 10° Fahrenheit change in temperature. This is one of the reasons it’s recommended that tire pressures be checked early in the morning before ambient temperatures, the sun's radiant heat, or the heat generated by driving causes the tire pressure to rise."
Were you linking to the Tire Rack article to prove or disprove your statement of 2 psi per 10 degrees?
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Every publication says some form of "about 1 psi per 10 degrees". Thats fine. I have data that shows that its actually closer to two, usually between 1.7-1.8 psi per 10 degree change because those articles always assume two things:
1. Professional installation of tires
2. The air you get from professional installation or the gas station is run through a dryer and is relatively free of humidity (hint: its not, and it isnt).
I was linking to the Tire Rack article because it disproved the notion that nitrogen doesnt change pressure with temperature, and also because they (like most other organizations) think more people would be better off with a tire pressure gauge and a little common sense.
The moral of the story is to simply check the tire pressure, versus spending money on gimmicks such as nitrogen in passenger car tires.
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02-25-2014, 07:28 AM
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#18
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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The "Nitrogen" Myth has been debunked years ago.
It was a scam run by tire dealers to increase profits. It was SO profitable, that just about everyone now "Offers the Service."
And no, every gas obeys Boyle's Law of Gasses. Nitrogen also expands and contracts when temperatures change. Since a tire's internal volume is constant, changing the temperature will raise and lower internal pressure.
Oh, and the reason Nitrogen is used is NASCAR, Space Shuttle, and Aircraft tires is for crash purposes and no other reason. Those tires STILL explode when heated; they just don't contribute their oxygen to the fire.
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Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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02-25-2014, 07:29 AM
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#19
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Site Team - Lou
Join Date: Oct 2009
Location: South Eastern PA
Posts: 23,269
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Quote:
Originally Posted by cucamelsmd15
I was linking to the tire rack article because it disproved the notion that nitrogen doesn't change pressure with temperature, and also because they (like most other organizations) think more people would be better off with a tire pressure gauge and a little common sense.
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A big "amen" brother!
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Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
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02-25-2014, 07:44 AM
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#20
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Senior Member
Join Date: Jul 2010
Location: Waynesville
Posts: 14,428
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The (Nitrogen) comes up every year right after the (Daytona NASCAR Race)! Lots of Members go to the race and get the (Secret) info about the (Nitrogen) then try it for all kinds of reasons,(Speed above 65MPH, better handling out of turn 4,cooler brakes,more MPG,Ect.) The bottom line use (AIR)! Youroo!!
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