You are here:

Tires/tire age

Advertisement


Question
The DOT code on my tires is AP4V 002X...how old are they? I purchased a couple years ago and they are already dry rotting. Thank you for your help...Trixie

Answer
Trixie,

Long version:  http://www.barrystiretech.com/dotcoding.html

Short Version:  You need to look on the other side of the tire.  The side you are looking at only has a partial code.  It is missing the date code - which is allowed and very common.  But the full code has to be on one side.

The date code format is week/week/year/year.  So a 2209 is the 22nd week of 2009.  

Tires

All Answers


Answers by Expert:


Ask Experts

Volunteer


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.

©2016 About.com. All rights reserved.