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Old 02-15-2019, 10:36 AM   #1
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How old is too old Class C Tires

We have an 05 Forester 2901 Class C. 20,000 lbs. The tires are Goodyear LT225/75R, dated mid 2010. The tires look and run great and over the three years (12,000 miles) have owned the rig, have never lost over 5 lbs of pressure between checks, the longest being 3-4 months over the winter. Am I pressing my luck by not replacing the tires? Thanks,
Ralph
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Old 02-15-2019, 10:53 AM   #2
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Time for a change. 18+ years on a set of tires is really pushing it.
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Old 02-15-2019, 11:12 AM   #3
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2010 dated tires and it is now 2019... with 12,000 miles...

trailer ST tires as you probably know are recommended to be changed after 5-6 years regardless of mileage, but you have regular tires... from personal experience I have run tires on a Toyota I owned for over 10 years without issue... HOWEVER, why push your luck on a vacation journey?

I would put on new tires, but that is just me...

I put new Michelin LT tires on my tow vehicle for less than $900 two years ago... seems like cheap insurance and you should not have to worry.

Costco currently has a Michelin tire sale and they were the cheapest provider I found when looking two years ago.
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Old 02-15-2019, 11:32 AM   #4
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Quote:
Originally Posted by PhoneDude 8289 View Post
Time for a change. 18+ years on a set of tires is really pushing it.
9 years, not 19
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Old 02-15-2019, 11:34 AM   #5
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replace them. 9 years is about double the max as I've been told.
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Old 02-15-2019, 11:46 AM   #6
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Originally Posted by rsdata View Post
I put new Michelin LT tires on my tow vehicle for less than $900 two years ago... seems like cheap insurance and you should not have to worry.

Costco currently has a Michelin tire sale and they were the cheapest provider I found when looking two years ago.
Which Michelin LT's did you get? They seem to have several in my size.
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Old 02-15-2019, 11:57 AM   #7
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replace them. 9 years is about double the max as I've been told.
For ST tires . op has a motorcoach so different tires and different time periods for replacement .
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Old 02-15-2019, 12:09 PM   #8
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Quote:
Which Michelin LT's did you get? They seem to have several in my size.
these seem to have a substantial following from comments I have seen here... I have now almost 40K on them and after measuring tread depth last month I expect to get 80K...
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Old 02-15-2019, 01:31 PM   #9
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The first thing to do is check the date on the tires to see how old they really are.
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Old 02-15-2019, 02:17 PM   #10
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Quote:
Originally Posted by PhoneDude 8289 View Post
Time for a change. 18+ years on a set of tires is really pushing it.
X2. I'm not a tire Nazi, but after 10-12 years here in So Cal, even truck tires are a risk to life and limb.
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Old 02-15-2019, 02:41 PM   #11
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IMHO 6 years are MAX. RV's sit still 99.9% of the time. The dead weight can cause the tread to separate from the chords internally and this is virtually not discernable. Looking at your tread depth is totally irrelevant.
An air pocket will form, heat up as you go down the road, and then you have a blowout.

I experienced this to a front tire on a class C. I was extremely lucky that it was not fatal as the RV lurched into the oncoming lane but fortunately there was no oncoming traffic at that precise moment. If a front tire blows you will swerve before you can possibly react.
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Old 02-15-2019, 02:46 PM   #12
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Originally Posted by rsdata View Post
2010 dated tires

Costco currently has a Michelin tire sale and they were the cheapest provider I found when looking two years ago.

I am a Costco shopper, but stopped tire shopping there in favor of America's Tire/Discount Tire. Slightly higher tire prices but hassle free better service. Optional tire failure warranty and THEYRE EVERYWHERE. On the trailer, full credit upon a road. Hazard failure, in another state. Only thing I paid was the price difference to upgrade from LR D to LRE and about $13 bucks for a new road hazard certificate on the new tire. And all within about 45 mins of my arrival. Not 4 hours like my Costco
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Old 02-15-2019, 04:09 PM   #13
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My reading on tires from various engineers and manufacturers: Start considering replacement at 5 years. Annually after 5 years, have a tire PROFESSIONAL inspect them.
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Old 02-15-2019, 05:06 PM   #14
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Where is wmtire when we need him?
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Old 02-15-2019, 07:34 PM   #15
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Problem is when you have a tire over 5 yrs old and you get a flat it's hard to get it repaired.
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Old 02-15-2019, 07:40 PM   #16
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5 years is long enough to run tires on a Class C. If you have a blowout with separation on the rear, expect heavy damage that may cost more to repair than a set of tires. Do not compare class C's to TT or class A tires. Different beast, different conditions.
If on the front, well you just heard from Yellowwing. I would recommend researching what to do, driving techniques, in the event of a tire incident.
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Old 02-15-2019, 07:44 PM   #17
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Quote:
Originally Posted by Chuck.virginia View Post
The first thing to do is check the date on the tires to see how old they really are.
Why do you think he didn’t check? He said mid 2010.
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Old 02-16-2019, 08:37 AM   #18
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Was turned down on truck tires that were 9 years old in WV inspection. Had plenty of tread just dry rotted. New tires are cheap insurance when it comes to sitting on the side of road some where.
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Old 02-16-2019, 01:12 PM   #19
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Straight from Michelin:

"A few milestones and tips:
1- Keep five years in mind
After five years or more in use, your tires should be thoroughly inspected at least once per year by a professional. (Frankly, I am not sure what a visual inspection will tell you. The damage that occurs is largely internal and invisible)

2- Ten years is a maximum
If the tires haven't been replaced 10 years after their date of manufacture, as a precaution, Michelin recommends replacing them with new tires. Even if they appear to be in usable condition and have not worn down to the tread wear indicator.
This applies to spare tires as well.

3- Proper care expands a tire’s lifespan
You can increase your tire's longevity by maintaining the correct air pressure, performing regular tire rotations and vehicle maintenance."

Additional information:

The British Rubber Manufacturers Association (BRMA) recommended practice, issued June 2001, states, "BRMA members strongly recommend that unused tyres should not be put into service if they are over six years old and that all tyres should be replaced ten years from the date of their manufacture."

I had two tires fail on my TT 5 years after the manufacture date with very low mileage. These were original equipment factory Chinese bombs.

Bite the bullet, your tires need to be replaced!
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Old 02-16-2019, 07:37 PM   #20
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I was watching MotorWeek and on Goss' Garage, they had an "exert" that said 10 years from build date or 8 years from in-service was the maximum for tires. Which ever comes first.


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