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 (11⁄2) 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.
See also:
Vehicle storage
If you plan on storing your vehicle for an extended period of time
(30 days or more), refer to the following maintenance recommendations
to ensure your vehicle stays in good operating condition.
...
Habits
• Smooth, moderate operation can yield up to 10% savings in fuel.
• Steady speeds without stopping will usually give the best fuel economy.
• Idling for long periods of time (greater than one minute ...
Daytime running lamps (DRL) (if equipped)
Turns the headlamps on with a reduced output (vehicles equipped with
halogen headlamps) or turns the front fog lamps on (vehicles equipped
with HID headlamps).
To activate:
• the ignition mu ...