Many tires sold in the USA will have a DOT number embossed on the inner sidewall. For example it may read "DOT 1508". This would mean the tire was made on the 15th week of 08.
Read the DOT code on the tire. The first two numbers & letters can tell you the plant that made them
Department of transportation.
If you are referring to the colored dots, they are there to help the technician when they mount the tire on the wheel. A yellow dot is supposed to be aligned with the valve stem. This makes it easier to balance the tire with the least amount of weights. The yellow dot is the lightest part of the tire. A red dot indicates a spot in the tire that is the thickest.
If the tire was made after 2000, the last four digits of the DOT number are the day and year of manufacture. If the number is 1234 for example that is the 123rd day of 2004/2014. The DOT number is on the sidewall of the tire.
Tell me the DOT code number on the side of the tire and I will tell you the manufacture.
I think it refers to a type of car tire.
There is no date. Expiration depends on wear. However, you may find the production date on a tire. Look for the DOT numbers on what would be the inside of the tire. Example, DOT 02112 would be the 21st week of 2012 that tire was produced.
it can be read at otakuworks dot com
If you READ the SIDE of the TIRE, it will be written on it.
Read & Practise
TAke it to auto Zone They will read the codes free.