Tires - The 10 Year Rule
Hey gang,
Regarding big, DP tires...
I know most adhere to this rule and some prefer to replace tires within 7 years or so of date code. Others replace the steers every 5 and the drives every 10. Others still will have them all removed and the interiors inspected before giving up on them. Etc, etc...
I'm inclined to err on the side of caution, myself, but I'm curious to hear your thoughts. And to see if anything has changed in the last 5 years since this thread.
So given...
6 - Toyo M-154 265/75R22.5 tires with 10,000 miles
Installed March of '13, but approaching 10 years of date code
Babied and covered most of their lives, in beautiful (where visible) condition with no checks
Entire lives in Santa Cruz with a very mild climate. Last couple of years undriven and parked without the jacks down and uncovered with driver's side facing south (the sun... and Central California coastal fog)
On a Freightliner/Cat chassis running fairly close to GVWR / tire max
Replacement cost - $3,100
What would you do?
EDIT: Here's a good read posted by dougrainer 5 years ago. The study indicates 6 years is the maximum for safety. Though it appears to be general tire specific. No mention of commercial, one way or the other.
http://www.ntsb.gov/news/events/Documents/2014_Tire_Safety_SYM_Panel_4b_Kane.pdf
Also... some seem to indicate that commercial truck tires are more robust than RV tires, despite the size. I can say this... the Toyos are spec-ed at 99 lbs vs 90 for the OEM Michelins. All that said... they also undergo more severe punishment.
.
Regarding big, DP tires...
I know most adhere to this rule and some prefer to replace tires within 7 years or so of date code. Others replace the steers every 5 and the drives every 10. Others still will have them all removed and the interiors inspected before giving up on them. Etc, etc...
I'm inclined to err on the side of caution, myself, but I'm curious to hear your thoughts. And to see if anything has changed in the last 5 years since this thread.
So given...
6 - Toyo M-154 265/75R22.5 tires with 10,000 miles
Installed March of '13, but approaching 10 years of date code
Babied and covered most of their lives, in beautiful (where visible) condition with no checks
Entire lives in Santa Cruz with a very mild climate. Last couple of years undriven and parked without the jacks down and uncovered with driver's side facing south (the sun... and Central California coastal fog)
On a Freightliner/Cat chassis running fairly close to GVWR / tire max
Replacement cost - $3,100
What would you do?
EDIT: Here's a good read posted by dougrainer 5 years ago. The study indicates 6 years is the maximum for safety. Though it appears to be general tire specific. No mention of commercial, one way or the other.
http://www.ntsb.gov/news/events/Documents/2014_Tire_Safety_SYM_Panel_4b_Kane.pdf
Also... some seem to indicate that commercial truck tires are more robust than RV tires, despite the size. I can say this... the Toyos are spec-ed at 99 lbs vs 90 for the OEM Michelins. All that said... they also undergo more severe punishment.
.
