clipped from: www.mytwodollars.com We all know that the code on the sidewall of tires has the numbers for tire size, proper inflation PSI, etc, but there is also a secret code on there that will tell you the week and year that your tire was made. It is at the end of the line on your tire that starts with DOT. Here is the tire from our Subaru, and where the code is:
Just so you can see exactly what I am talking about, that piece of code that says “2607” is what tells you how old your tire is. This tire shown here was made in the 26th week of 2007, so it is a fairly new tire and probably perfectly fine as far as tires go. So the next time you go buy tires, make sure you are getting one that has not been sitting for years and years waiting for you to take it home; even though the tread still looks shiny, if it is an old tire, it could be waiting to cause a serious accident somewhere down the line.