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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.
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.
SNOW TIRES AND CHAINS
Snow tires must be the same size and grade as the tires you
currently have on your vehicle.
The tires on your vehicle have all weather treads to provide traction in
rain and snow. However, in some climates, you may need to use snow
tires and chains. If you need to use snow tires and chains, it is
Maintenance and care
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Page 225 of 232

windows ..................................202
wiper blades ............................200
woodtone trim ........................202
Climate control (see Air
conditioning or Heating) ............18
Clock .......................................31,38
Console ........................................55
Controls
power seat .................................74
Coolant
checking and adding ..............156
refill capacities .................160,205
specifications ...................206,207
Cruise control
(see Speed control) ....................43
Customer Assistance ................129
Ford accessories for your
vehicle .....................................218
Ford Extended
Service Plan ............................211
Getting assistance outside
the U.S. and Canada ..............217
Getting roadside assistance ...129
Getting the
service you need ....................211
Ordering additional owner's
literature .................................222
The Dispute
Settlement Board ...................214
Utilizing the Mediation/
Arbitration Program ...............217
Daytime running lamps
(see Lamps) ................................16
Defrost
rear window ..............................18
Dipstick
automatic
transmission fluid ...................162
engine oil .................................151
Doors
door ajar warning .......................9
lubricant specifications ..........206Driving under special
conditions
through water .........................123
Emergencies, roadside
jump-starting ..........................141
Emission control system ..........185
Engine ........................................207
check engine/
service engine soon light ...........9
cleaning ...................................200
coolant .....................................156
idle speed control ...................170
lubrication
specifications ...................206,207
refill capacities ........................205
service points ...................149,150
starting after a collision .........130
Engine block heater .................110
Engine oil ..................................151
checking and adding ..............151
dipstick ....................................151
filter, specifications .........153,204
recommendations ...................153
refill capacities ........................205
specifications ...................206,207
Exhaust fumes ..........................110
Floor mats ...................................55
Fluid capacities .........................205
Foglamps .....................................17
Fuel ............................................177
calculating fuel economy .......182
cap ...........................................179
capacity ...................................205
choosing the right fuel ...........180
comparisons with EPA fuel
economy estimates .................185
detergent in fuel .....................181
filling your vehicle
with fuel ....................177,179,182
filter, specifications .........182,204
fuel pump shut-off switch .....130
gauge .........................................15
Index
225