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:
Windscreen/rear window wipers
BLADES
Periodically clean the rubber part using special products; TUTELA PROFESSIONAL
SC 35 is recommended.
If the rubber blades are bent or worn they should be replaced. In any case they
should ...
TIREFIT Kit
Small punctures up to 1/4 in (6 mm) in the tire tread can be sealed with TIREFIT.
Foreign objects (e.g., screws or nails) should not be removed from the tire. TIREFIT
can be used in outside temper ...
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 ...