Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 09-08-2012, 08:36 AM   #1
Member
 
jmarmor's Avatar
 
Join Date: Sep 2012
Posts: 80
Mixing tires

I had a blow out on one of my rear dual axle Goodyear G670 tires. They were 8 years old. Minimal tread wear,just old. I had a new one replaced on the shoulder of a major highway. The tire cost me $750 as I expected. Now I wish to use Michelin XZA2 energy tires to replace the remaining three tires on this axle. Can I mix in the one new Goodyear in with the Michelin of the same size? I'd hate to discard the new tire I just put on. My front tires were replaced two years ago so no need to put it upfront. Thanks
__________________

__________________
jmarmor 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 09-08-2012, 08:50 AM   #2
Senior Member
 
wardy's Avatar
 
Tiffin Owners Club
Join Date: Dec 2009
Location: Winter Park, Fl
Posts: 473
Yes you can mix those since they are the same size and it is the drive axle. I would check the date code(s) on the Goodyear and then the Michelins. If they were not within 6-8 months of each other I would hesitate to combine them. It is NOT advised to mix steer tires. Another option would be to use the GY as a spare and just keep it in the basement. Also, have you compared the weight rating at a given PSI? If they are not identical you would need to run different pressures. For me at least the spare tire idea is looking better.
__________________

__________________
2007 Allegro Bus 42 QRP, 400 ISL now 2017 LTV Serenity on a 2016 Sprinter chassis
wardy is offline   Reply With Quote
Old 09-08-2012, 09:28 AM   #3
Moderator Emeritus
 
Gary RVRoamer's Avatar


 
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 18,096
I would not mix the two brands unless and until I was positive that the rolling diameter and revs/mile were identical or very, very close. Two tires of the same size are not necessarily identical in all respects.

If I were in your shoes, I would buy another G670 to pair with the existing one. Maybe put them on the front if you want 4 Michelins for the rear. At worst, put the two G670 on one end and the two Michelins on the other.
__________________
Gary Brinck
Former owner of 2004 American Tradition
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC
Gary RVRoamer is offline   Reply With Quote
Old 09-08-2012, 09:53 AM   #4
Senior Member
 
Sky_Boss's Avatar


 
Newmar Owners Club
Spartan Chassis
Join Date: Apr 2012
Location: ON THE ROAD...SOMEWHERE
Posts: 6,071
Also...

there is another factor to consider and that is tire slip angle. That is how much deflection a tire will make in situations like during a turn.

Definition of tyre Slip Angle

Tires of the same size but different models of manufacturers will have different slip characteristics so I would be especially careful on mixing dual tires in any manner. Even mixing different tires front and back could have some handling quirks if the front tires slip significantly different than the rear.

Anecdotally, when I bought my RV it came with the standard Michelin tires on the rear that where 7 years old and a 2 year old set of Goodyear G series on the front that were also a "match" but not exact. I knew I would replace all tires when I bought it. Before I did that the steering seemed a bit wonky, especially in turns. After the replacement I was MUCH happier with the handling. Certainly new tires generally help but I think getting all tires matched up played a part.
__________________
Don, Sandee & GSD Zeus. Guardian GSDs Gunny (7/11/15) & Thor (5/5/15)
2006 DSDP 4320, Spartan MM IFS, 2013 CR-V, Blue Ox Avail, SMI AF1, Samsung 197R Refer.
Sky_Boss is online now   Reply With Quote
Old 09-08-2012, 11:22 AM   #5
Senior Member
 
Join Date: Nov 2007
Location: somewhere in the west
Posts: 1,168
I have successfully mixed tire brands on the drives, but rapid uneven wear can be a result in some cases.

The trick I used to overcome uneven wear is to use a piece of white chalk and make a straight line across the tires and then take a few mile run down the road. When you stop, look at the chalk lines, if the chalk lines are not the same on inner, and outer tires, an adjustment in in order.

If the chalk is gone in only the middle of the tire, it is inflated over the ideal pressure. If the chalk is gone from the edges only, this indicated under inflation. If the chalk is ALL gone, the tire is running flat against the road and all is fine.

How this works with mixed is if the lines are not the same on both inner and outer tire, at the same pressure, an adjustment is necessary so they DO come out the same.

Personally, I run my tires a little overinflated, so my chalk lines will be visible on the outside edges if the test was in a straight line.


Ed
__________________
Ed-Sommers is offline   Reply With Quote
Reply

Tags
tires



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


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:50 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.