The tire market is a huge industry and, in many ways, it’s as diverse as the uses we have for our diesels. Mud-terrains allow the off-roader to navigate rugged terrain and provide a tough look.

Tire treadwear ratings, also known as Uniform Tire Quality Grading (UTQG), were developed by the National Highway Traffic Safety Administration (NHTSA) and the U.S. Department of Transportation (DOT).

If you've ever been curious about what all those numbers and letters are on the side of your tires (aside from the brand name, of course), and you've gone down a bit of a research rabbit hole, you'll ...