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:
Intelligent Oil Life Monitor™
Your vehicle is equipped with an Intelligent Oil Life Monitor™ that
determines when the engine oil should be changed based on how your
vehicles is used. By using several important factors in its c ...
Panoramic roof deflector (if equipped)
Vacuum the wind deflector cloth to remove insects & loose dirt. Clean
with Motorcraft Professional Strength Carpet & Upholstery Cleaner
(ZC-54). ...
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.
...
