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:
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of
coolant, and to ensure that engine coolant (antifreeze)
will return to the radiator from the coolant recovery
bottle.
The cap should be inspec ...
Operating Tips
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What Causes Corrosion?
Corrosion is the result of deterioration or removal of
paint and protective coatings from your vehicle.
The most common causes are:
• Road salt, dirt, and moisture accumulation.
• Stone and g ...