1998 FORD CONTOUR Owners Manual

Maintenance and care
153 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 grade of 150
would wear one and one-half
(11/2) times as well on the
government course as a tire grade
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 ABC
The traction grades, from highest
to lowest are A, B, and C, and they
represent the tire’s ability to stop
on wet pavement as measured
under 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 (straightahead) traction
tests and does not include
cornering (turning) traction.
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Maintenance and care
154Temperature ABC
The temperature grades are A (the
highest), B, and C, representing
the tire’s resistance to the
generation of 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
excess temperature can lead to
sudden tire failure. The grade C
corresponds to a level of
performance which all passenger
cars tires must meet under the
Federal Motor Vehicle Safety
Standard No. 109. Grades B and A
represent higher levels of
performance on the laboratory test
wheel than the minimum required
by law.
The temperature grade for
this tire is established for a
tire that is properly inflated and
not overloaded.
Excessive speed,
underinflation, or excessive
loading can cause heat buildup
and possible tire failure.
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Maintenance and care
155 Checking tire pressure
Check the tire pressure
periodically and inflate the tires as
necessary. To check the tire
pressure, insert the tire pressure
gauge into the valve.
The cold pressure amount is listed
on the Safety Compliance
Certification label.
Improperly inflated tires can
affect vehicle handling and
can fail suddenly, possibly
resulting in loss of vehicle control.
Rotating tires
Rotate your tires at regular
intervals for even wear. Rotation
intervals are listed in the “Service
Guide”.
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Maintenance and care
156
Failure to follow these
precautions may adversely
affect the handling of the vehicle
and make it easier to lose control
and roll over.
Replacing tires
Replace tires when the wear band
is visible through the tire treads.
When replacing full size
tires, never mix radial, bias-
belted, or bias-type tires. Use only
the tire sizes that are listed on the
tire pressure decal. Make sure that
all tires are the same size, speed
rating, and load-carrying capacity.
Use only the tire combinations
recommended on the decal. If you
do not follow these precautions,
your vehicle may not drive
properly and safely.
Do not replace your tires
with “high performance”
tires or larger size tires.
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Maintenance and care
157
Dispose of worn tires in
accordance with local
environmental regulations.
Refer to the Safety Compliance
Certification label to determine the
specific size tire and wheel Ford
Motor Company recommends for
use on this vehicle.
When purchasing replacement tires
for your vehicle, consult your
dealer or a qualified service
technician to ensure that the
correct tire type is used.
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Maintenance and care
158The tires on your vehicle have all-
weather treads to provide traction
in rain and snow. However, in some
climates, using snow tires and
chains may be necessary. Ford
offers snow chains as a Ford
approved accessory and
recommends use of these or their
equivalents on approved tires. See
your dealer or a qualified service
technician for more information on
tire chains for your vehicle. Follow
these guidelines when using snow
tires and chains:
•Install chains securely, verifying
that the chains do not touch any
wiring, brake lines or fuel lines.
•Install the chains on the front
tires only.
•Do not use tire chains on 205/60
tires and 205/55R16 Z rated tires.
Steering, suspension and body
components may be damaged by
use of chains.
Snow tires must be the same
size and grade as the tires
you currently have on your
vehicle.
Using snow tires and chains
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Maintenance and care
159 Change over from winter to
summer tires as soon as road
conditions allow, this will reduce
fuel consumption and noise in the
vehicle’s interior.
•Drive cautiously. If you hear the
chains rub or bang against the
vehicle, stop and retighten them.
If this does not work, remove the
chains to prevent vehicle
damage.
•Local regulations may prohibit or
restrict the use of tire chains.
Investigate the laws and
regulations in your area before
installing chains.
•Avoid overloading your vehicle.
•Do not use tire chains on
temporary spare tires.
•Remove the tire chains when
they are no longer needed. Do
not use chains on dry roads.
•The suspension insulation and
bumpers will help prevent
vehicle damage. Do not remove
these components from the
vehicle when using snow tires
and chains.
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Maintenance and care
160
Automotive fuels can cause
serious injury or death if
misused or mishandled.
IMPORTANT FUEL
INFORMATON
Important safety precautions
Do not overfill the fuel tank.
The pressure in an overfilled
tank may cause leakage and lead
to fuel spray and fire.
If you do not use the proper
fuel cap, the pressure in the
fuel tank can damage the fuel
system or cause it to work
improperly in a collision.
The fuel system may be
under pressure. If the fuel
cap is venting vapor or if you hear
a hissing sound, wait until it stops
before completely removing the
cap.
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