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Question
Hello, I purchased a 2002 Toyota Camry from my mother in law in July, 2012 with only 10,500 miles on it.  It's a true blue grandma car :)  She has dementia and it sat in the garage for three years.  Allen Tire Co. out here in CA says the tire has expired the manufactures date.  Is this true?  They agreed  it shows no sign of cracking but the tire does read 2001.  What do you think?

Thank you very much!
cheryl

Answer
Cheryl,

Most tire manufacturers have issued bulletins stating that tires ought to be taken out of service when the tires are 10 years old.  That's because the rubber deteriorates over time - even though the wear might be minimal.  This is to prevent a tire failure due to structural deterioration.

Many point to cracks as an indicator of the state of deterioration, but that is only a way to tell if the tire is bad.  It is not reliable to tell if the tire is good.  Tires can be bad without showing signs of cracking.

So, yes, those tires need to be changed.

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Barry Smith

Expertise

I have over 30 years experience in the design, manufacturing, and testing of tires. I have served as the technical advisor to the "800" number. I have authored or co-authored many publications - usually without credit. I can answer almost any technical question, but please don`t ask me to compare brands. I probably have prejudices because of my work experience.

Experience

Member SAE (Society of Automotive Engineers) Member Tire Society (Tire Technical Organization) SCCA Regional Competiton License holder Authored many training manuals on tires, their care and use.

Organizations
SAE (Society of Automotive Engineers) SCCA (Sports Car Club of America) Tire Society

Publications
You may want to visit my web site: http://www.barrystiretech.com/index.html

Education/Credentials
I am a graduate of the University of Dayton, Dayton, OH - BME, 1971 I attended graduate school at the University of Akron - but did not complete my PhD - something I regret.

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