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, CPreparation tool
TELEMATICS SYSTEM (DIAGNOSTICS) > General DescriptionPREPARATION TOOL1. SPECIAL TOOLILLUSTRATIONTOOL NUMBERDESCRIPTIONREMARKS — SUBARU SELECT MONITOR 4Used for setting of each function and troubleshooting for electrical system.NOTE:For detailed operation procedures of Subaru Select Monitor 4, r ...
Initial illumination for system check
Several of the warning and indicator lights
illuminate when the ignition switch is
initially turned to the "ON" position. This
permits checking the operation of the
bulbs.
Apply the parking brake and turn the
ignition switch to the "ON" position. For
the system check, the following lights
...
Before starting out on a trip
Check the towing regulations for trailer
or caravan vehicles that vary by state/
region. Failure to comply with the procedures
set forth will not only compromise
your safety, but will also negate your
insurance coverage and/or may violate
the state road and traffic acts and regulation ...