Owner's Manual
Page 261
... Uniform Tire Quality Grading 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. (This applies only to vehicles sold in road characteristics and climate. For example, a tire graded 150 would wear one and a half (1 1/2) times as a tire...spare tires, tires with nominal rim diameters of the tire when tested under controlled conditions on General Motors passenger cars and light trucks may have poor traction ...
... Uniform Tire Quality Grading 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. (This applies only to vehicles sold in road characteristics and climate. For example, a tire graded 150 would wear one and a half (1 1/2) times as a tire...spare tires, tires with nominal rim diameters of the tire when tested under controlled conditions on General Motors passenger cars and light trucks may have poor traction ...