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08-02-2017, 12:58 PM
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#1
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Senior Member
Join Date: Apr 2015
Posts: 1,442
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Tire PSI and Elevation
What is the proper thing to do for psi when leaving a low elevation and climbing to several thousand feet? When I leave the PHX area and head to higher elevations my properly set cold temp psi's here drop 10 to 15 psi once at elevation.
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2014 Raptor 300MP, 2014 Cowboy Cadillac - Ram 3500 Crew Cab Long Bed Longhorn 6.7 Cummins Turbo Diesel DRW 4.10 Rear End, 5588 Payload, Firestone Airbags, Curt Q20, TST507 
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08-02-2017, 02:35 PM
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#2
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Senior Member
Join Date: Feb 2015
Location: Huntingtown, MD
Posts: 834
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I am not an expert but will share my experience, 3 weeks ago we climbed to 6850 feet elevation. I took a glance at my TPMS system and the air pressure increased only a couple pounds.
My problem was the sleep number bed blowing out at under 7,000 feet elevation, go figure.
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Earl & Sharon, 2008 Fleetwood Expedition, ISB 6.7
1995 Jeep YJ/2013 Chevy Sonic
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08-02-2017, 02:38 PM
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#3
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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Don't worry about it. Not enough difference to worry.
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2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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08-02-2017, 02:38 PM
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#4
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Senior Member
Join Date: Jun 2017
Posts: 2,807
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They would drop because they are colder, not because of elevation.
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08-02-2017, 02:42 PM
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#5
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Registered User
Join Date: Jun 2017
Posts: 156
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Technically, the tire pressure goes up, because the environment pressure goes down. the tires can take it, because if you roll, the rubber gets softer and the pressure goes down. simply physics.
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08-02-2017, 02:55 PM
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#6
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Senior Member
Join Date: Nov 2015
Posts: 26,848
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Check/adjust tire psi COLD before you leave PHX
Then check/adjust tire psi COLD before leaving high country
Check/adjust tire psi morning of travel day regardless of where you happen to be
Otherwise good to go
__________________
I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
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08-02-2017, 03:07 PM
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#7
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Senior Member
Forest River Owners Club
Join Date: Nov 2004
Location: NW Florida
Posts: 347
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Ever have trouble getting pressure from your air compressor when a higher altitudes? Seems to make them work alot harder or not work at all has been my experience.
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2016 Ram 3500HD CTD 4x4 SRW CCSB
2020 Airstream Flying Cloud 27FB
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08-02-2017, 03:37 PM
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#8
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Senior Member
Join Date: Nov 2015
Posts: 26,848
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Quote:
Originally Posted by FloraBama
Ever have trouble getting pressure from your air compressor when a higher altitudes? Seems to make them work alot harder or not work at all has been my experience.
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How's your breathing?
__________________
I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
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08-03-2017, 05:49 AM
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#9
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Registered User
Join Date: Jun 2017
Posts: 156
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Quote:
Originally Posted by Old-Biscuit
How's your breathing?
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this ain't got nothing to do with the compressor- your breathing is harder, because there is less oxygen in the air, the higher you get. That's why you need special equipment, once you reached a certain height (also the reason, why astronauts having oxygen tanks).
The compressor works harder, because the air pressure goes down with increasing altitude. you can try this by cooking water- at sea level, water cooks at 100°C, if you do the same on top of mount Everest, it cooks already at 50°C. you can't actually cook there really good, except you roast it over the fire. but there you have the problem- if you don't carry the wood up there, you get in trouble. no steak today then.
Simple Physics.
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08-03-2017, 10:16 AM
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#10
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Senior Member
Join Date: Feb 2009
Location: Ca
Posts: 1,076
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I drive from below sea level to over 8,000 feet in less than a day. Tires work just fine with without adding air.
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08-03-2017, 05:35 PM
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#11
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Senior Member
Join Date: Dec 2012
Location: Oregon
Posts: 6,657
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Do nothing. I'm 64 years old and have never changed the psi in any of my motorcycles, RV's or vehicles when traveling.
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