Aging 22.5 tires - how old is too old?
I read an article created by: Guy Walenga, director of engineering, tire products and technologies at Bridgestone Americas In it he tells how tires "properly maintained, inflated, repaired and ret...
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Michelin Technical Bulletin
Service Life for RV/Motorhome Tires
The following recommendation applies to RV/Motorhome tires.
It is impossible to predict when tires should be replaced based on their calendar age alone.
However, the older a tire the greater the chance that it will need to be replaced due to the
service-related evolution or other conditions found upon inspection or detected during use.
While most tires will need replacement before they achieve 10 years, it is recommended that
any tires in service 10 years or more from the date of manufacture, including spare tires, be
replaced with new tires as a simple precaution even if such tires appear serviceable and even
if they have not reached the legal wear limit.
For tires that were on an original equipment vehicle (i.e., acquired by the consumer on a
new vehicle), follow the vehicle manufacturer’s tire replacement recommendations, when
specified (but not to exceed 10 years).
I had a Michelin Rep. tell me, that to start having the tires checked annually by a qualified tire dealer beginning in the 6th year and replace when they reach 9 yrs. max. I followed this and the 8th year two tires had very fine cracks developing around the beads so I replaced them, rather than take a chance that one would blow and cause more damage than the price of the tires.
Service Life for RV/Motorhome Tires
The following recommendation applies to RV/Motorhome tires.
It is impossible to predict when tires should be replaced based on their calendar age alone.
However, the older a tire the greater the chance that it will need to be replaced due to the
service-related evolution or other conditions found upon inspection or detected during use.
While most tires will need replacement before they achieve 10 years, it is recommended that
any tires in service 10 years or more from the date of manufacture, including spare tires, be
replaced with new tires as a simple precaution even if such tires appear serviceable and even
if they have not reached the legal wear limit.
For tires that were on an original equipment vehicle (i.e., acquired by the consumer on a
new vehicle), follow the vehicle manufacturer’s tire replacement recommendations, when
specified (but not to exceed 10 years).
I had a Michelin Rep. tell me, that to start having the tires checked annually by a qualified tire dealer beginning in the 6th year and replace when they reach 9 yrs. max. I followed this and the 8th year two tires had very fine cracks developing around the beads so I replaced them, rather than take a chance that one would blow and cause more damage than the price of the tires.
