the Date Code on Tyres
The Date of tyre manufacture is the last digits of
the DOT Code
The code is pretty simple. The three-digit code was
used for tyres manufactured before 2000. So for example 1
7 6 means it was manufactured in the 17th
week of 6th year of the decade. In this case
it means 1986.
For tyres manufactured in the 90's, the same code
holds true but there is a little triangle after the DOT code. So for
this example, a tyre manufactured in the 17th week of 1996 would
have the code 176
After 2000, the code was switched to a 4-digit
code. Same rules apply, so for example 3 0 0
3 means the tyre was manufactured in the 30th
week of 2003.