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SERVICING AND MAINTENANCE
The suggested Front Wheel Drive (FWD) rotation
method is the "forward cross" shown in the
following diagram. This rotation pattern does
not apply to some directional tires that must not
be reversed.
Tire Rotation (Forward Cross)
The suggested Four Wheel Drive (4WD) Tire
rotation method is the "rearward cross" shown
in the following diagram.
Tire Rotation (Rearward Cross)
CAUTION!
Proper operation of four-wheel drive vehicles
depends on tires of equal size, type and cir-
cumference on each wheel. Any difference in
tire size can cause damage to the power
transfer unit. Tire rotation schedule should be
followed to balance tire wear.
DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES
The following tire grading categories
were established by the National
Highway Traffic Safety Administration.
The specific grade rating assigned by the
tire's manufacturer in each category is
shown on the sidewall of the tires on
your vehicle.
All passenger vehicle tires must conform
to Federal safety requirements in
addition to these grades.
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
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