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:
Recommended Shift Speeds
To use your manual transmission for optimal fuel economy, it should be upshifted
as listed in the following table
...
Flashing the headlights
Pull the lever towards the steering wheel (unstable position) regardless of the
position of the knurled ring.
Instrument panel warning light 1will turn on. ...
Accessories purchased by the owner
If after buying the car, you decide to install electrical accessories that require
a permanent electric supply (alarm, satellite antitheft system, etc.) or accessories
that in any case burden the ...