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 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.
See also:
Tire Rotation Recommendations
The tires on the front and rear of your vehicle operate at different loads and
perform different steering, handling, and braking functions. For these reasons,
they wear at unequal rates.
These ef ...
RW/FF
Pressing the RW (Rewind) or FF (Fast Forward) buttons causes the tuner to search
for the next frequency in the direction of the arrows. This feature operates in
either AM or FM frequencies. ...