The tire treadwear rating is based on a standard that uses a control tire with a score of 100. Most tires' ratings are 200 to ...

The manufacturers grade the tires themselves for temperature, traction, and treadwear. The system has been essentially unchanged for decades, despite significant advances in tire engineering.

Tires with a 60,000-mile treadwear warranty and UTQG Treadwear grade of 580 in specific 17- and 18-inch tire sizes will have a free replacement cost between up to 30,000 miles.

Likewise, a tire with a 700 UTQG grade and an 80,000-mile warranty had excellent tread wear in the tests. Most Read Life Stories Here are the things you do on a plane that you’ll regret ...

UTQG ratings for Treadwear, ... Uniform Treadwear Quality Grades are what separate a tire from being legal for series such as the 24 Hours of LeMons (190-treadwear minimum) or not.

WASHINGTON (July 4, 2000)—The federal government is changing the way it calculates treadwear grades under the Uniform Tire Quality Grading System. In a final rule, effective July 24, the National ...

WASHINGTON—The federal government is changing the way it calculates treadwear grades under the Uniform Tire Quality Grading System to keep a lid on increases in treadwear grades. In a final rule, ...