Gulf Stream Owners RV Forum
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-02-2018, 01:24 PM   #1
lauxydad
New Member
 
Join Date: Jul 2015
Posts: 12
Default Tire age?

I have a 2001 25' class A Conquest. My rear tires are 6 years old per the tire code. I read that 5 years is max on RV's and need replacement. However, I checked each tire completely for any sign of age - cracks on sidewall and between tread. Tires have no age signs and look like new. RV and or tires were probably kept covered.
Question...Should I look to replace them anyway? Or can I keep another year or till wear shows up?

Thanks, Ed
lauxydad is offline   Reply With Quote
Old 03-02-2018, 08:58 PM   #2
Chuck v
Senior Member
 
Join Date: Dec 2009
Posts: 435
Default

I have been using 7 to 8 years as a rule of thumb for tires that are used at least occasionally... Holding up the full weight of a motor home and not moving for many years is not a good treatment of the casings...and as you note exposure to UV is another aging factor (but so is just exposure to the atmosphere -- and the ozone from high traffic areas on highways and such make things a bit worse.)

This bulletin from Michelin says to inspect tires each year after they reach 5 years old and unconditionally replace them at 10 years max.
https://www.michelintruck.com/assets...e_RV_Tires.pdf

Chuck
__________________
2007 Tour Master T40C
Acura MDX toad

"It takes a great deal of time to recover from any improvement..."
Chuck v is offline   Reply With Quote
Old 03-18-2018, 09:19 PM   #3
Beaufort NC
Senior Member
 
Join Date: Jun 2006
Location: Beaufort
Posts: 107
Default

A blowout in the middle of NFW is MOST inconvenient, to say nothing of downright dangerous. I don't go past five.
__________________
Jenn & Pete
2006 Crescendo 8356 purchased new
95k miles
Workhorse chassis
Cummins 330 ISC
Toad: 2015 Jeep GC Summit
Beaufort NC is offline   Reply With Quote
Old 04-12-2018, 10:16 PM   #4
Ray Porter
New Member
 
Join Date: Mar 2018
Location: Rincon ga
Posts: 2
Default

looking for the stock tires size for 2004 Urlta Supreme 37 ft
Ray Porter is offline   Reply With Quote
Old 04-15-2018, 08:27 AM   #5
Restorium
Senior Member
 
Restorium's Avatar
 
Join Date: Apr 2018
Posts: 229
Default

Had a blow out on the way to Niagara Falls. The tires were 10 years old but looked just like new. The tire guy in Ohio said the steel belts rusted.
Restorium is offline   Reply With Quote
Old 04-15-2018, 09:53 AM   #6
Chuck v
Senior Member
 
Join Date: Dec 2009
Posts: 435
Default

Restorium,

Your 10 year old tires should have been unconditionally replaced per the Michelin rule noted above -- but in a heavy vehicle like a motor home, earlier is better. Glad there was no major damage from the blowout or any injuries.

The only way for the steel to rust is to have air and some moisture preset -- which would mean the sidewalls were cracked or otherwise compromised. When inspecting tires look closely at the side wall condition, even on the side facing toward the center line of the vehicle. Look for the distributed fine line cracks of aging as well as any individual 'bruise' spots from hitting a curb or island...

Chuck
__________________
2007 Tour Master T40C
Acura MDX toad

"It takes a great deal of time to recover from any improvement..."
Chuck v is offline   Reply With Quote
Old 04-15-2018, 10:13 AM   #7
Restorium
Senior Member
 
Restorium's Avatar
 
Join Date: Apr 2018
Posts: 229
Default

Quote:
Originally Posted by Chuck v View Post
Restorium,

Your 10 year old tires should have been unconditionally replaced per the Michelin rule noted above -- but in a heavy vehicle like a motor home, earlier is better. Glad there was no major damage from the blowout or any injuries.

The only way for the steel to rust is to have air and some moisture preset -- which would mean the sidewalls were cracked or otherwise compromised. When inspecting tires look closely at the side wall condition, even on the side facing toward the center line of the vehicle. Look for the distributed fine line cracks of aging as well as any individual 'bruise' spots from hitting a curb or island...

Chuck
Hi Chuck,
Yup, should have replaced them. But the price was too high when looking at the tires that looked perfect. Had a blow out on one of the inside tires on the rear. I didn't even notice it, my wife following behind did. So we went to the closest tire place that was qualified to do the job. The older guy that was there said even though the tires looked perfect they still rust inside just from having them sitting on the ground in the winter. He said that things can be wrong with an old tire that can't be seen in any inspection. Cost me $1600 because he said you need to replace the rear tires as a set. Made it to Niagara Falls with no other problems other than terrible roads and semi's!
Well, one other snag when the red hats at the park in Niagara didn't like the direction we parked her. Went along with what they wanted and faced her away from the view of the lake.
Restorium is offline   Reply With Quote
Old 04-19-2018, 05:42 PM   #8
Beaufort NC
Senior Member
 
Join Date: Jun 2006
Location: Beaufort
Posts: 107
Default

>>>>Cost me $1600 because he said you need to replace the rear tires as a set.

You need to replace a side as a set (2 tires), but I don't know about a full set of four.
__________________
Jenn & Pete
2006 Crescendo 8356 purchased new
95k miles
Workhorse chassis
Cummins 330 ISC
Toad: 2015 Jeep GC Summit
Beaufort NC is offline   Reply With Quote
Old 04-19-2018, 08:56 PM   #9
Chuck v
Senior Member
 
Join Date: Dec 2009
Posts: 435
Default

Pete,

The replacement of a pair versus an axle worth in this case is not relevant -- since all the tires were ten years and needed to be replaced anyway.

My bigger concern is if the rig Restorium was driving got the needed front tires as well...a blowout there is way more exiting than anyone needs to experience... Hopefully better judgement prevailed over false economy.

Chuck
__________________
2007 Tour Master T40C
Acura MDX toad

"It takes a great deal of time to recover from any improvement..."
Chuck v is offline   Reply With Quote
Old 04-20-2018, 07:28 AM   #10
Restorium
Senior Member
 
Restorium's Avatar
 
Join Date: Apr 2018
Posts: 229
Default

If you replace one side of the duals then one side is always fighting the other and the tires will wear out prematurely.

Nothing to worry about here Chuck. I had already replaced the front tires before our trip to Niagara because the 10 year old front tires had weather checking.

The main reason I left the 10 year old tires on the rear was because they looked perfect, no checks, the problem with them was inside the tires. Something you couldn't see during inspection. Something most folks don't even know about. Rusted steel belts.
Restorium is offline   Reply With Quote
Reply

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

Forum Jump

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 05:40 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2018, vBulletin Solutions, Inc.