Owner's Manual
Page 267
... a tire graded 150 would wear one and a half (1.5) times as well on the government course as measured under controlled conditions on specified government test surfaces of asphalt and concrete. Uniform Tire Quality Grading Quality grades can be found ...B, C The traction grades, from the norm due to vehicles sold in road characteristics and climate. Treadwear 200 Traction AA Temperature A The following information relates to the system developed by the United States National Highway Traffic Safety Administration, which grades tires by treadwear, traction and temperature performance...
... a tire graded 150 would wear one and a half (1.5) times as well on the government course as measured under controlled conditions on specified government test surfaces of asphalt and concrete. Uniform Tire Quality Grading Quality grades can be found ...B, C The traction grades, from the norm due to vehicles sold in road characteristics and climate. Treadwear 200 Traction AA Temperature A The following information relates to the system developed by the United States National Highway Traffic Safety Administration, which grades tires by treadwear, traction and temperature performance...