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02-22-2017, 03:25 PM
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#1
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Junior Member
Join Date: Nov 2015
Location: Silver Spring
Posts: 21
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Thoughts on air pressure
Looking for thoughts and/or opinions on tire pressure. Heading to Florida pulling our Jayco 28RBDS. It has Rainier ST 225/75R15 tires. I normally keep between 60 to 65 psi - what do you think? Thanks in advance for your response...
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02-22-2017, 03:30 PM
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#2
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Senior Member
Join Date: May 2012
Location: Minnesota
Posts: 9,773
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Max pressure noted on the sidewall the time. I let mine drop to 60 once and we had a bad wind coming home and I had sway, like I never had experienced. Ever since I run nothing but the max pressure, and have never experienced sway since.
There is also a sticky in the general chat area that has a document from discount tire??? That says to always run max pressure.
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02-22-2017, 03:54 PM
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#3
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Senior Member
Join Date: Feb 2017
Location: Dallas
Posts: 4,281
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not 1lb over not 1lb less. Tires should be exact pressure they are rated for. I tried everything I read and blew a tire on every trip until I did what the man at the tire said. Keep it exact
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02-22-2017, 04:11 PM
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#4
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Senior Member
Join Date: Dec 2014
Location: FL
Posts: 11,281
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Yup, max. The sidewall flexes less that way; the tire runs cooler and it resists sway better.
__________________
Sherm & Terry w/rescue Eydie (min Schnauzer) & Charley (std Poodle)
SOLD:2015 Jay Flight 27RLS, GY Endurance (E), Days: 102 '15, 90 '16, 80 '17, 161 '18, 365+ '20
SOLD: 2006 Ford F350 PSD, 4WD, CC, LB, SRW, Camper pkg., 375,000mi
Full timing: Some will think you're crazy, some will be envious, just enjoy the freedom!
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02-22-2017, 04:59 PM
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#5
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Junior Member
Join Date: Jul 2016
Location: gardnerville
Posts: 12
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Do you fill the tires when they are cold?
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02-22-2017, 05:48 PM
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#6
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Senior Member
Join Date: Sep 2013
Location: Rancho Mirage, CA
Posts: 713
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Quote:
Originally Posted by whit66
Do you fill the tires when they are cold?
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Yes.
__________________
Diego the German Shepherd & Family
2021 Ford F-250 Crew Cab, 7.3 Gas-10 speed
2006 Toyota Sequoia-Sold
2015 Jayco Jay Flight 23MB Elite
Previous RV's, 1988 33-foot Barth Class A and 1994 Flagstaff Pop-Up
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02-22-2017, 05:50 PM
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#7
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Senior Member
Join Date: Feb 2016
Location: Abilene
Posts: 579
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Elevation and ambient temperatures will change pressures as much as 5psi.
Based on my truck TPMS.
I adjust to sticker values at each "launch".
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02-22-2017, 07:17 PM
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#8
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Senior Member
Join Date: Apr 2014
Location: Gilbert
Posts: 607
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I always thought I should keep the tires just below the max pressure - I was severely wrong. More air pressure allows them to run cooler - now I make sure I am a couple pounds over the max pressure. Also, it really depends on your tires - you have to have good tires/brand or it won't matter how much air is in them.
__________________
2014 Jayco Jay Flight 32 BHDS
2015 Ford F-250 Lariat 6.7L Powerstroke 4x4
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02-23-2017, 07:20 AM
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#9
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Senior Member
Join Date: Jan 2014
Location: Greater Grand Rapids
Posts: 1,393
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X2 (or 3) on the max pressure on the tire sidewall. Following the recommendation of several members here, I also run the rear tires of my tow vehicle at max. sidewall pressure . . . regardless of what the sticker on the door says. Leave the front tires at the recommended psi for better steering control.
The difference has been night & day. Rarely get any "pull" from passing semi's any more! 
Have a safe trip!
__________________
2013 Eagle 266RKS
2011 Ford F-150 w/3.5L Ecoboost & H.D. Tow Package
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02-23-2017, 07:49 AM
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#10
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Senior Member
Join Date: May 2012
Location: Minnesota
Posts: 9,773
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Quote:
Originally Posted by Brownie
....I also run the rear tires of my tow vehicle at max. sidewall pressure . . . regardless of what the sticker on the door says. Leave the front tires at the recommended psi for better steering control.
The difference has been night & day. Rarely get any "pull" from passing semi's any more!
Have a safe trip! |
After changing the tires on my TV, to a different brand, same size/rating, I found that I need to run 5 extra psi in the fronts and 10 extra psi in the rear for the same/similar handling as the old OEM tires provided. Still well within the sidewall max pressure. I have though about changing them out, but it is hard to justify.
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02-23-2017, 08:43 AM
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#11
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Senior Member
Join Date: Dec 2014
Location: FL
Posts: 11,281
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Quote:
Originally Posted by Brownie
X2 (or 3) on the max pressure on the tire sidewall. Following the recommendation of several members here, I also run the rear tires of my tow vehicle at max. sidewall pressure . . . regardless of what the sticker on the door says. Leave the front tires at the recommended psi for better steering control.
The difference has been night & day. Rarely get any "pull" from passing semi's any more!
Have a safe trip! |
What he said, except I set the front tires at 10psi below the max on the sidewall (load range E, 80psi rear, 70psi front).
__________________
Sherm & Terry w/rescue Eydie (min Schnauzer) & Charley (std Poodle)
SOLD:2015 Jay Flight 27RLS, GY Endurance (E), Days: 102 '15, 90 '16, 80 '17, 161 '18, 365+ '20
SOLD: 2006 Ford F350 PSD, 4WD, CC, LB, SRW, Camper pkg., 375,000mi
Full timing: Some will think you're crazy, some will be envious, just enjoy the freedom!
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