Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Alpine Coach Owner's Forum
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Thread Tools Search this Thread Display Modes
Old 10-25-2010, 08:32 AM   #1
Senior Member
Join Date: Jan 2005
Location: U.P. michigan/Montana
Posts: 185
What is the correct tire pressure?

Please delete double thread.

Wingding is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 10-25-2010, 08:43 AM   #2
Senior Member
bcbowers's Avatar
Alpine Owners Club
Join Date: Mar 2009
Location: Surprise, AZ
Posts: 569
The tire pressure rating should be priinted on tehtire although it could be a maximum. My Toyos have a maximum of 120 - 122 PSI. A normal "cool" tire pressure of 105 PSI was recommended by the Pete's Roadside Service when I purchased new tires. I observed on the tire pressure monitoring system that the tires will definitely increase pressure as you're driving. The warmer the temperature outside the more the tire pressure increases as you're driving on a hot road.

I'm now setting my Toyos to 100 PSI here in Colorado when it's cool outside as in below 70 degrees. This setting is "MY" new preference after observing what the pressure does while driving. I'm sure some more experienced owners will offer their advice &/or experiences.

Bob Bowers (Surprise, AZ)
2003 Alpine Coach 40' FDTS
2014 Jeep Cherokee Lattitude
bcbowers is offline   Reply With Quote
Old 10-25-2010, 11:49 PM   #3
Senior Member
Tom and Patty's Avatar

Alpine Owners Club
Join Date: Jun 2004
Posts: 1,717
Bob, it is very important that you know the weight on each tire, or at least each axle, before you run anything but the recommended psi on your coach, or max PSI of the tire. When you know your corner weights then you can lower the PSI in your tires safely. Check out this link Tire Information Links

My best guess is that 100 PSI is too low on your 40 footer, marginal at best. My front axle weighs 10,200 and I run 95 PSI. Giving me approximately a 800-900lb safety margin on 295/75R22.5. If you have 11R22.5, 100 psi will scale 11,900, and I believe your front axle is 12K
Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 36' FDS 72232 Our Photos
We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, me and you - hand in hand.
Tom and Patty is offline   Reply With Quote
Old 10-26-2010, 10:51 AM   #4
Senior Member
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 21,174
The tire pressure rating is printed on the tire.... WRONG

Go out to your tire and read THE ENTIRE SENTENCE printed there, Not just the last 4 words (Max Pressure yyy PSI) but the entire sentence

Maximum load of xxxx pounds at maximum pressure of yyy psi.

Thus, unless you are running maximum load.. That is NOT the proper pressure.

The pressure written on a tag somewhere inside is likewise all but guaranteed to be wrong (less the rig is empty save for the driver)

The correct pressure is found by weighing the rig and visiting RV Safety, Merritt Island, Florida or the tire maker's web site.

NOTE: the url above.. Has folks who will come out and weigh you for a fee.
Home is where I park it!
wa8yxm is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tire Pressure Monitor ichn2go Winnebago Industries Owner's Forum 13 10-20-2010 07:44 AM
Correct Tire Pressure VACMAN Newmar Owner's Forum 28 10-01-2009 06:54 AM
Correct tire pressure? tps0424 National RV Owner's Forum 13 09-25-2009 01:45 PM
correct tire pressure on my 2004 ksca 3740 nowrelxn Newmar Owner's Forum 8 09-08-2006 02:38 AM
Tire Pressure Johnhdj MH-General Discussions & Problems 3 04-07-2005 02:54 PM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:59 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.