Hidden Dangers of Tires that Look New But Are Actually Old

[Type 100]

Lahat ng gulong may production date sa side wall, usually first 2 digits is year and followed again by another 2 digits which is the week number.

example 0947

09 is the year

47 is the week number.

Expiration is 5 years from manufacturing date.

Actually it's the other way around. The code should read "4709"

The first two digits are always the week number. The last two digits are the year number. So in the example above, the tires were manufactured on the 47th week of 2009.