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268 SERVICING AND MAINTENANCE
Refer to the “Maintenance Plan” in this section
for the proper maintenance intervals. The
reasons for any rapid or unusual wear should be
corrected prior to rotation being performed.
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)
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 addi-
tion 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
CAUTION!
Proper operation of four-wheel drive vehicles
depends on tires of equal size, type and
circumference 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.
2020_FIAT_500X_OM_USA=GUID-B0E0CFCD-ED13-4DFD-975F-620984F05523=1=en=.book Page 268
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