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Author Topic: Tires on a used rig  (Read 383 times)

Humanaquarian

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Tires on a used rig
« on: March 04, 2018, 08:43:02 PM »
Iím about to purchase a 2011 class c with 6 tires. They look great, tread is solid and no cracking etc... what code tells you the year? If they are older than 4-6 years , do they need replaced? I read they lose 15% of life a year. 
Thanks in advance
2011 Coachmen 220LE

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NY_Dutch

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Re: Tires on a used rig
« Reply #1 on: March 04, 2018, 08:47:43 PM »
The DOT date code is only molded on one side of the tire, so you may have do some work to find them. Here's a link that shows how to read the codes when you find them.

https://www.tirebuyer.com/education/how-to-determine-the-age-of-your-tires
Dutch
2001 GBM Landau 34' Class A
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kdbgoat

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Re: Tires on a used rig
« Reply #2 on: March 05, 2018, 05:40:57 AM »
We generally advise 7 years. I think Gary posted something from Michelin that says 10 years, but they have to be inspected at a qualified Michelin dealer after 7 years.
I know you believe you understand what you think I said,
But I am not sure you realize what you heard is not what I meant


2016 Leprechaun 319DS

Bill N

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Re: Tires on a used rig
« Reply #3 on: March 05, 2018, 06:18:10 AM »
We generally advise 7 years. I think Gary posted something from Michelin that says 10 years, but they have to be inspected at a qualified Michelin dealer after 7 years.
A neat way to get you back to a Michelin dealer so he can sell you a new set huh?

Bill
Bill & Joan N in Missouri
USAF (Ret - 1961-1981)
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kdbgoat

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Re: Tires on a used rig
« Reply #4 on: March 05, 2018, 06:58:59 AM »
Most likely.
I know you believe you understand what you think I said,
But I am not sure you realize what you heard is not what I meant


2016 Leprechaun 319DS

Gary RV_Wizard

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Re: Tires on a used rig
« Reply #5 on: March 05, 2018, 08:13:53 AM »
Michelin actually recommends a thorough inspection inside & out every year starting at age 5. That's probably their liability lawyers talking, since their engineers seem to think 10 years is reasonable. One of the concerns is that tire damage may be apparent only when viewed from the inside, so a superficially good-looking tire might still be problematic. Not clear what the odds of that are, though.

The rationale for 7 years is that the greater the age, the greater the risk of a blow-out, and a blow out on an RV frequently does body damage and/or tears up wires & plumbing. That makes a tire failure more than just inconvenient.

I would not replace a tire in apparent good condition simply because it was 4-6 years old, but I would start planning for the expensive purchase.  I might run it 8 years if all still looks well at age 7.   However, that assumes a discerning eye for tire condition. Many owners only know a tire as that round black thing on each corner...
« Last Edit: March 05, 2018, 08:28:23 AM by Gary RV_Wizard »
Gary
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Home: Ocala National Forest, FL

BigLarry

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Re: Tires on a used rig
« Reply #6 on: March 05, 2018, 12:55:48 PM »
Last August, I threw the tread off three of the four tires on one of my equipment trailers while hauling a tractor up I-35 heading to Kansas.  They were 6 years old.  They were 10 ply 7-50/16 bias ply tires and were properly inflated.  The 12,000 GVWR trailer only weighed about 8000 lbs. at the time.  I had to stop and buy four new tires.  They looked good and I really thought they were fine, but obviously I was wrong.  I felt the vibration and stopped before the tires blew.
Larry and Betty
Bryan, Texas
2017 GMC Sierra 2500HD 4x4 Diesel
2016 Cougar 28RLS

Seon

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Re: Tires on a used rig
« Reply #7 on: March 05, 2018, 04:58:29 PM »
Here's the date code.
1st two numbers are what week they were made.
Last two numbers is the year made.



Itasca 27' Spirit
Lake Camanche, CA

NCSU Dad

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Re: Tires on a used rig
« Reply #8 on: March 05, 2018, 05:37:21 PM »
I use a cell phone app called "Tire Facts". It was recommended by a fellow RV Forum member and works great. Since I'm technically challenged I can't tell you how to find it. No doubt someone here can fill you in.

 

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