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The tread or sidewall is cracked, cut
or snagged deep enough to show cord
or fabric.
0
The tire has a bump, bulge or split.
0
The tire has a puncture, cut, or other
damage that can't be repaired well
because of the size or location of the
damage.
Buying New Tires
To find out what kind and size of tires you
need, look at the Tire-Loading
Information label.
The tires installed on your vehicle when it
was new had a Tire Performance Criteria
Specification (TPC Spec) number on each
tire's sidewall. When you get new tires,
get ones with that same TPC Spec
number. That way, your vehicle will
continue to have tires that are designed to
give proper endurance, handling, speed
rating, traction, ride and other things
during normal service on your vehicle. If
your tires have an all-season tread design,
the TPC number will be followed by a
"MS" (for mud and snow).
If you ever replace your tires with those
not having a TPC Spec number, make
sure they are the same size, load range,
speed'rating and construction type (bias,
bias-belted or radial) as your original
tires.
It's all right to drive with your compact
spare, though. It was developed for use on
your vehicle.
Uniform Tire Quality
Grading
The following information relates to the
system developed by the United States
National Highway Traffic Safety
Administration which grades tires by
treadwear, traction and temperature
performance. (This applies only to
vehicles sold in the United States.)
I'readwear
The treadwear grade is a comparative
eating based on the wear rate of the tire
when tested under controlled conditions
)n a specified government test course. For
:xample, a tire graded 150 would wear
me and a half (1 1/2) times as well on the
;overnment course as a tire graded 100.
rhe 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.
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