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Old 05-26-2021, 04:21 PM   #1
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22.5 Goodyear tire

Hi, i got a 2015 class a motorhome with goodyear tire on the rim since new. The thread are good and there is no cracking on them, somebody told me that i can run them for 10 years. Now iím on preparation for a long trip an i would like to know if it would be preferable to change them before leaving ?
Best regards
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Old 05-26-2021, 04:26 PM   #2
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Quote:
Originally Posted by JF1957 View Post
Hi, i got a 2015 class a motorhome with goodyear tire on the rim since new. The thread are good and there is no cracking on them, somebody told me that i can run them for 10 years. Now i’m on preparation for a long trip an i would like to know if it would be preferable to change them before leaving ?
Best regards

From the DOT number on the tires, when were they produced?


The last four digits of the complete DOT number molded into ONE sidewall of every tire indicate the WEEK and YEAR of production.
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Old 05-26-2021, 04:31 PM   #3
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Quote:
Originally Posted by JF1957 View Post
Hi, i got a 2015 class a motorhome with goodyear tire on the rim since new. The thread are good and there is no cracking on them, somebody told me that i can run them for 10 years. Now iím on preparation for a long trip an i would like to know if it would be preferable to change them before leaving ?
Best regards
Rule of thumb is 3 to 6 or 5 to 7 years, not ten. There is always someone who will differ with the rule, but it's your coach and your life that will depend on those tires, not the person telling you 10 years. Many factors that contribute to tire safety as well. Sitting for long periods is a no-no. Under inflation, exposure to sunlight for long periods of time, etc. I change mine at or near the 6-7 year mark depending on sidewall cracks. Tread depth is never an issue with mine, always plenty of tread left.

So let others tell you their suggestions here now and expect an ear full.
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Old 05-26-2021, 05:01 PM   #4
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Since your coach is a 2015 model I'd guess your tires were manufactured in Q3 or Q4 2014 meaning they are quickly approaching seven years old. All major RV tire manufactures (Michelin, Goodyear, Hankook, etc.) all say "trash" a tire that is 10 years old and replace with new. And the manufacturers state that tires in the 5-10 years old range should only be used if they receive a professional inspection at least once a year. Many RV owners follow the "replace at seven years old" practice as the cost for a new set of tires is far less than the safety and financial consequences of have a 7+ year old tire fail while driving.

Personally, I would not embark on a long (e.g. many miles) adventure with 7+ year old tires.
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Old 05-26-2021, 05:21 PM   #5
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My tires were manufactured in 2015, just under 7 years and were replaced this year with 8 new Toyo's.
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Old 05-26-2021, 05:33 PM   #6
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My tires are now in their 6th year. At the end of the season they will have 40-45,000 on them and still have plenty of tread. I’ll start next year with new tires. Even a minor tire failure is a major hassle, and they aren’t all minor.
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Old 05-26-2021, 05:59 PM   #7
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My 2016, purchased in December of 2015, had tires made in the 38th week of 2014. They will be seven years old at summers end, but are starting to show a few dry rot cracks. They will be replaced with new Toyos next week.

The tires get installed when the chassis is produced on Ford F53. They sit in the staging area. They then sit in one place for a long time until the coach is built. They then sit again on the dealer lot.

That first set of tires has been subject to tough conditions before you ever get to put any miles on it. I would error on the conservative side and replace in the 6-7 year mark. With the replacement tires, you get to handle their care from the jump. Wash them often with mild soap and warm water. Use a protectant that has no petroleum distillates, like Aerospace 303. Drive the coach once a month for a short distance when possible. Keep the sun off of them when parked. I you manage to provide this level of care, up to ten years may be doable. I would still get them inspected annually after six years.

There are a lot of folks out there driving on dangerous tires that may never have an issue. I prefer not to rely on luck when it comes to major safety considerations. A flat is a pain to deal with, especially when dealing with 22.5s. A blow out tends to create a lot of collateral damage, maybe even loss of control.

I would also not leave my parking place without Tire Pressure Monitoring, including my TOAD.
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Old 05-26-2021, 06:13 PM   #8
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Heck...they are Goodyears....."good for about a year"

Lord knows you've gotten more than that out of them

I would change them before your luck runs out.

Just my 2 cents worth based on my experience with owning 3 coaches initially purchased with Goodyear tires.
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Old 05-26-2021, 06:59 PM   #9
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Goodyear will probably say they are usable for 10 years; I know Michelin says that in their RV Tire Guide. However, that is not a guarantee of no blowouts - just an average useful life. Some may last only 5-7 years, while others may last 12 or more. How much do you want to gamble that yours are the long-lived examples? Remember that its not just inconvenience - a blowout on a motorhome has a high probability of doing body damage or ripping out wiring or plumbing.


For that reason, conventional wisdom is that it is smarter to change well before 10 years. There is nothing magical about 5 years or 7 years or whatever; choose a timeframe you think is a reasonable risk vs the cost.
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Old 05-26-2021, 07:27 PM   #10
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This NTSB pdf should be an eye opener: https://www.ntsb.gov/news/events/Doc...el_4b_Kane.pdf
Michelin says their tire age better when used regularly. reference: pg 8 of https://michelinb2b.com/wps/b2bconte...s_Brochure.pdf IMO that applies to ALL tires.
Goodyear states virtually the same thing: https://www.goodyearrvtires.com/tire...uidelines.aspx





My personal maximum time limit is 8 years IF no external signs of damage or aging are noted. I run tires at the tire placard listed pressure.
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