I am trying to establish the age of....

[recycledsixtie]

my Blizzak tires that I bought used. Could somebody tell me how old they are?
I think that these numbers are the ones : 0230677
Other numbers are :
P0701
CLH2209
Any ideas?

[thstone]

The week and year the tire was produced is defined by the last four digits of the Tire Identification Number (2 digits to identify the week followed by 2 digits to identify the year).

Based on the info provided, your tires were most likely manufactued the 22nd week of 2009.