Monday, December 4, 2023


Do RV owners know about tire age?

RV Tire Safety
with RV tire expert Roger Marble

There are many posts on how to learn the calendar age of tires by reading the DOT serial number and “decoding” the last four digits to learn the week and year a tire was made. But just knowing the calendar age doesn’t tell you the useful life of a tire.

Some folks think ten years or longer is OK; others think it is a good practice to change every two years. We each have different operating conditions which affects the “functional age” of our tires.

We recently took a poll which asked: “Have you ever heard the phrase ‘Tires age out before they wear out?'” Here are the results:

I was pretty sure that many of you had heard the phrase, but now I have the numbers.

If you participated, Thanks!

Read more from Roger Marble on his blog at




Roger Marble
Roger Marble
Retired Tire Design and Forensic Engineer w/50+ years of experience. Currently has Class-C RV. Previous Truck Camper, Winny Brave, Class-C & 23'TT. Also towed race car w/ 23' open trailer and in 26' Closed trailer. While racing he set lap records at 6 different tracks racing from Lime Rock CT to Riverside CA and Daytona to Mosport Canada. Gives RV and Genealogy Seminars for FMCA across the USA. Taught vehicle handling to local Police Depts



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Lee Ensminger (@guest_34761)
5 years ago

I’ve heard it, and I believe it, but where I disagree with most people is their hard and fast number of years before replacement. I think they are often too low. If you care for your tires, keep them properly inflated, cover them when the RV is outside and being used, then store it indoors when not in use, IN MY EXPERIENCE, they last longer. I’m not saying that is true for everyone.

Roger Marble (@guest_35530)
5 years ago
Reply to  Lee Ensminger

Understand. I think the suggestion for maximum life for motorhomes of 10 years and 5 years for trailers is reasonable. 10 doesn’t mean keep till 10 but that it’s better to not use after 10. Yes it is possible to get more life out of a tire than 5 or 10 years but the odds are against you and the negative consequences can be costly

Sherry Dawson (@guest_34692)
5 years ago

Roger, I hope you are following this up with an article on how to determine the useful tires on our own RVs.

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