Treadwear
The Treadwear grade is a comparative rating, based on the
wear rate of the tire when tested under controlled condi-
tions on a specified government test course. For example, a
tire graded 150 would wear one and one-half 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 Grades
The Traction grades, from highest to lowest, are AA, A, B,
and C. These 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.
WARNING!
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 Grades
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 con-
trolled 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
vehicle 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.
WARNING!
The temperature grade for this tire is established for a
tire that is properly inflated and not overloaded. Ex-
cessive speed, under-inflation, or excessive loading,
either separately or in combination, can cause heat
buildup and possible tire failure.
8
SERVICING AND MAINTENANCE 325
Child RestraintsBooster Seats ............................178
Child Restraints ........................ .174
Child Seat Installation .....................188
How To Stow An Unused ALR Seat Belt ........186
Infants And Child Restraints ................177
Lower Anchors And Tethers For Children .......181
Older Children And Child Restraints ...........177
Seating Positions ........................ .180
Child Safety Locks ..........................32
Clean Air Gasoline ........................ .335
Cleaning Wheels ............................... .322
Climate Control ............................55
Clock ............................... .345, 353
Clutch ................................. .299
Clutch Fluid ............................. .299
Coin Holder ...............................85
Cold Weather Operation ..................... .198
Compact Disc (CD) Maintenance ................402
Compact Spare Tire ........................ .320
Compass .................................109
Compass Calibration ........................108
Compass Variance ..........................108 Connector
UCI ..................................366
Universal Consumer Interface (UCI) ...........366
Console ..................................85
Contract, Service .......................... .408
Coolant (Antifreeze) ........................ .339
Coolant Pressure Cap (Radiator Cap) .............297
Cooling System ........................ .286, 294
Adding Coolant (Antifreeze) .................296
Coolant Level ....................287, 295, 298
Disposal Of Used Coolant ..................298
Drain, Flush, And Refill ....................295
Inspection ............................. .298
Points To Remember ..................... .298
Pressur e
Cap ............................297
Radiator Cap .......................... .297
Selection Of Coolant (Antifreeze) ..........295, 340
Corrosion Protection ........................326
Cupholders ...............................85
Customer Assistance ........................406
Dealer Service ............................ .287
Defroster, Windshield ........................192
Delay (Intermittent) Wipers ....................52
Diagnostic System, Onboard ...................125
414 INDEX
