Check the last 4 digits of the DOT#, it will tell you how old they are. First 2 digits are the week, last 2 digits are the year. Example; 2618. Manufactured 26th week of 2018. The industry deems if more than 6 years old, it's useful life is expired. Especially with utility tires. They sit more than are used and have the tendency to dry rot. Also good idea to carry a rope plug kit. They are not legal for everyday use in a lot of places, but do work on punctures. Will get you home most of the time when in a pinch. TYFS
