When to replace tires

[John&Andrea]

Just wondering when do you replace. I know the recommendation is 5-7 years of age. We are starting our sixth year on these tires and have had no issues. Planning to replace next year.
Tires were manufactured 7/2020.
How do you determine when to replace?

 

[Neal]

I did mine at 6 years and 60K miles were on them. I think there may have been some tire wear markers revealing per a FL service visit. It's simply my worst nightmare so not something I wanted to put off. I had RettroBands installed during this process as well, and also centramatic balancers. I had some cupping on the tag axle tires. Everything inspected good, it was time.

 

[Holdmybeer]

That's one of the hottest topics of debate on many RV forums. Roger Marble, who self titles himself a tire engineer with lower case e ( there's no record of him ever attending an engineering school) says 5-7 yrs. Michelin says up to 10 yrs. There's really no tell-tell for when to replace unless there are obvious signs like wear patterns, tread wear, cracks and/or bulges. Marble does also make an exception for ST tires, he recommends those be replaced every 3-5 years.
Many tire centers won't let their techs put air in a 10+ year old tire.
Speaking for myself, I might stretch the window on the rear but not the steer tires.

 

[redbaron]

I agree, front tires get replaced sooner than rear. Even with retroband, it’s not worth the trouble of a steer axle tire blowout.

I personally would hit the 6 year mark for replacement based on DOT codes.

 

[Neemer]

Mine are beginning year six and I’m going to replace them sometime next month. It’s another one of those peace of mind things.

 

[MemoriesByTheMile]

We replaced ours after 8 years, only did it that early because we were considering selling the coach.
Tires looked great, using the visual guides from Michelin.
When we replaced the insides also looked very good.
Went from Michelin to now using Toyo. Will see how these age compared to the Michelins we had prior.

 

[John&Andrea]

I think I am replacing before the next trip.

 

[Kevin D Pem]

5 years is a good number!

While thinking about cost, do a complete analysis.

Turns out that the price of tire replacement is much lower than the difference created by a CarMax report when trying to sell your RV.