wheel size BUICK LESABRE 1993 Owners Manual

Compact Spare Tire
Although the compact spare was fully inflated when
your vehicle was new, it can lose air after a time. Check
the inflation pressure regularly. It should be
60 psi (420
Wa). The compact spare is made to go up to 3,000 miles
(5000 km), so you can finish your trip and have your
full-size tire repaired or replaced where you want. Of
course, it’s best
to replace your spare with a full-size tire
as soon as
you can. Your spare will last longer and be in
good shape in case you need it again.
Your anti-lock brake system warning light may come
on
when you are driving with a compact spare. See
“Anti-Lock Brake System Warning Light” in the Index. Don’t
use your
compact spare on some other vehicle.
And don’t mix your compact spare or wheel with other
wheels or tires. They won’t fit. Keep your spare and its
wheel together.
Tire chains wo
them will damage
y
chains too. Do
compact spar I
A CnUTION:
Storing a jack, a tire, or other equipment in the
passenger compartment of the vehicle could
cause injury. In a sudden stop or colllsian, loose
mwipment could strike someone. Store all these
.__ the proper place.
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A CAUTION:
;
Mixing tires could cause you to lose control
while driving. If you mix tires of different sizes
or
types (radial and bias-belted tires), the vehicle
may not handle properly, and you could have a
crash. Be sure to use the same size and type
tires
on all four wheels.
It’s all right to drive with your compact spare,
though. It was developed for use on your vehicle.
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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.)
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 a half
(1 1/2) 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.
Traction - A, B, C
The traction grades, from highest to lowest are: A, B,
and C. They represent the tire’s ability to stop on wet
pavement as measured under controlled conditions
on
specified government test surfaces of asphalt and
concrete.
A tire marked C may have poor traction
performance.
Warning: The traction grade assigned to this tire
is based
on braking (straight-ahead) traction tests and does not
include cornering (turning) traction.
Temperature - A, B, C
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of
heat and its ability to dissipate heat when tested under
controlled conditions on a specified indoor laboratory
test wheel. Sustained high temperature can cause the
material
of the tire to degenerate and reduce tire life, and
excessive temperature can lead to sudden tire failure.
The grade
C corresponds to a level of performance

‘A CAUTION:
0
Using the wrong replacement wheels, wheel
bolts,
or whwl nuts on your vehicle can be
dangerous. It could affect the braking and
handling
of your vehicle, make your tires lose air
and make you lose control.
You could have a
collision in which you or others could be injured.
Always use the correctwheel, wheel bolts, and
wheel
nuts for replacement.
NOTICE:
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The wrong wheel can also cause problems with
bearing life, brake cooling,
speedometerlodometer calibration, headlight
aim, bumper height, vehicle ground clearance,
and tire
or tire chai
Used Rep1 Vheels - - -
’A CAUTION:
Putting a used wheel on your vehicle is
dangerous. You can’t know how it’s been used or
how many miles it’s been driven.
It could fail
suddenly and cause an accident. If you have to
replace a wheel use anew
GM original
equipment wheel.
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Tire Chains
NOTICE
Use tire chains
SAE Class “S”
size for your
and tighten them as tightly as possible with
ends securely fastened. Drive
slowly and fol
the chain ma
hear the chai
retighten them.
If the contact continues, .elow
down until it stops. Driving ton fast with 4
on will damage your vehicle.
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