Subaru Crosstrek Owners Manual: Treadwear
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
This information indicates the relative
performance of passenger car
tires in the area of treadwear,
traction, and temperature resistance.
This is to aid the consumer
in making an informed choi ...
Traction AA, A, B, C
The traction grades, from highest to
lowest, are AA, A, B and C. Those
grades represent the tire's ability to
stop on wet pavement as measured
under controlled conditions on specified
government ...
Other materials:
Specification
LUBRICATION(H4DO) > General DescriptionSPECIFICATIONLubrication methodForced lubricationOil pumpPump typeTrochoid typeNumber of teethInner rotor11Outer rotor12Outer rotor diameter ? Thicknessmm (in)77 ? 12 (3.03 ? 0.47)Performance(Oil temperature 120°C (248°F))600 r/minDisch ...
Inspection
MECHANICAL(H4DO) > Cylinder BlockINSPECTION1. CYLINDER BLOCK & PISTON1. Visually inspect to make sure that there are no cracks, scratches or other damage.2. Use liquid penetrant tester on the important sections to check for fissures.3. Check that there are no traces of gas leaking or water le ...
Operation
VEHICLE DYNAMICS CONTROL (VDC) > VDC Sequence ControlOPERATION1. While the VDC sequence control is performed, the operation of the hydraulic unit can be checked using the brake tester or pressure gauge after the hydraulic unit solenoid valve is operated.2. VDC sequence control can be started by S ...