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Tire Quality Grades apply to new pneumatic tires for use on passenger
cars. They do not apply to deep tread, winter-type snow tires,
space-saver or temporary use spare tires, tires with nominal rim
diameters of 10 to 12 inches or limited production tires as defined in
Title 49 Code of Federal Regulations Part 575.104(c)(2).
U.S. Department of Transportation-Tire quality grades:The U.S.
Department of Transportation requires Ford to give you the following
information about tire grades exactly as the government has written it.
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 (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 AA A B C
The traction grades, from highest to lowest are AA, A, B, and C. Those
grades 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.
The traction grade assigned to this tire is based on
straight-ahead braking traction tests, and does not include
acceleration, cornering, hydroplaning or peak traction characteristics.
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
which all passenger car 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.
Maintenance and care
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Replacing the tires
Replace the 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
Certification Label. Make sure that all tires are the same size, speed
rating, and load-carrying capacity. Use only the tire combinations
recommended on the label. If you do not follow these precautions,
your vehicle may not drive properly and safely.
Make sure that all replacement tires are of the same size, type,
load-carrying capacity and tread design (e.g., ªAll Terrainº, etc.),
as originally offered by Ford.
Do not replace your tires with ªhigh performanceº tires or larger
size tires.
Failure to follow these precautions may adversely affect the
handling of the vehicle and make it easier for the driver to lose
control and roll over.
Tires that are larger or smaller than your vehicle's original tires may also
affect the accuracy of your speedometer.
Maintenance and care
70
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headlamps, flash to pass ..........14
instrument panel, dimming .....13
Lane change indicator
(see Turn signal) ........................16
Lights, warning and indicator ......6
anti-lock brakes (ABS) ........8, 24
brake ............................................7
charging system ..........................9
high beam ...................................8
overdrive off ................................8
safety belt ...................................7
service engine soon ....................6
turn signal indicator ...................8
Lubricant specifications .......81±82
M
Manual transmission
fluid capacities ..........................80
lubricant specifications ............82
Motorcraft parts ....................78, 80
O
Octane rating ..............................75
Odometer .....................................10
Oil (see Engine oil) ....................54
Overdrive .....................................16
P
Parking brake ..............................24
Parts (see Motorcraft parts) ......80
Power distribution box
(see Fuses) .................................37Power steering ............................25
fluid, checking and adding ......62
fluid, refill capacity ..................80
fluid, specifications .............81±82
R
Relays ....................................34, 39
S
Safety defects, reporting ............83
Safety restraints
warning light and chime ........7, 9
Servicing your vehicle ................52
Spark plugs, specifications ...80, 82
Special notice ................................3
utility-type vehicles ....................3
Specification chart,
lubricants ...............................81±82
Speedometer .................................9
Starting your vehicle ............18±21
jump starting ............................43
Steering wheel
tilting .........................................15
T
Tires .................................40, 67±69
changing ....................................40
checking the pressure ..............69
replacing ....................................70
rotating ......................................69
snow tires and chains ..............71
tire grades .................................68
treadwear ..................................68
Towing .........................................69
wrecker ......................................49
Index
86