The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course.
For example, a tire graded 150 would wear one and one-half (1- 1/2) times as well on the government course as a tire graded 100.
The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate.
Uniform tire quality grading standards
Traction AA, A, B, CSuspension
SPECIFICATIONS > CrosstrekSUSPENSIONModel2.0 L DOHC non-turboFrontMacpherson strut type suspensionRearDouble-wishbone type suspension ...
Installation
BRAKE > Stop Light SwitchINSTALLATION1. BULB TYPE1. Install the stop light switch.CAUTION:• Turn the stop light switch clockwise when installing so that it can return backward by approximately 1 mm (0.04 in) and clearance is automatically adjusted.• If it is hard to turn the switch, r ...
Assembly
MANUAL TRANSMISSION AND DIFFERENTIAL(5MT) > Center DifferentialASSEMBLYInstall the ball bearings.CAUTION:Do not apply a load in excess of 10 kN (1 ton, 1.1 US ton, 1.0 Imp ton).NOTE:Use a new ball bearing.(A)Ball bearing ...