DO
T Tir e Qualit y Gradin g (U.S . Cars )
Th e tire s o n you r vehicl e mee t al l
U.S . Federa l Safet y Requirements .
Al l tire s ar e als o grade d fo r
trea d wear , traction , an d temperatur e
performanc e accordin g t o
Departmen t o f Transportatio n
(DOT ) standards . Th e followin g
explain s thes e gradings .
Unifor m Tir e Qualit y Gradin g
Qualit y grade s ca n b e foun d wher e
applicabl e o n th e tir e sidewal l
betwee n th e trea d shoulde r an d th e
maximu m sectio n width . Fo r
example :
Treadwea r 20 0
Tractio n A A
Temperatur e A
Treadwea
r
Th e treadwea r grad e is a compara -
tiv e ratin g base d o n th e wea r rat e o f
th e tir e whe n teste d unde r controlle d
condition s o n a specifie d governmen t
tes t course . Fo r example , a tir e
grade d 15 0 woul d wea r on e an d on e
hal f (1-1/2 ) time s a s wel l o n th e
governmen t cours e a s a tir e grade d
100 . Th e relativ e performanc e o f
tire s depend s upo n th e actua l condi -
tion s o f thei r use , however , an d ma y
depart significantl y fro m th e nor m
du e t o variation s i n drivin g habits ,
servic e practices , an d difference s i n
roa d characteristic s an d climate .
Tractio
n
Th e tractio n grades , fro m highes t t o
lowest , ar e AA , A , B , an d C . Thos e
grade s represen t th e tire' s abilit y t o
sto p o n we t pavemen t a s measure d
unde r controlle d condition s o n
specifie d governmen t tes t surface s o f
asphal t an d concrete . A tir e marke d C
ma y hav e poo r tractio n performance .
Warning : Th e tractio n grad e assigne d
t o thi s tir e is base d o n straight-ahea d
brakin g tractio n tests , an d doe s no t
includ e acceleration , cornering ,
hydroplaning , o r pea k tractio n
characteristics .
Technica l Informatio n
DO
T Tir e Qualit y Gradin g (U.S . Cars )
Temperatur e
Th e temperatur e grade s ar e A (th e
highest) , B , an d C , representin g th e
tire' s resistanc e to th e generatio n o f
hea t an d it s abilit y t o dissipat e hea t
whe n teste d unde r controlle d
condition s o n a specifie d indoo r
laborator y tes t wheel . Sustaine d hig h
temperatur e ca n caus e th e materia l
o f th e tir e to degenerat e an d reduc e
tir e life , an d excessiv e temperatur e
ca n lea d to sudden tire failure . Th e
grad e C correspond s t o a leve l o f
performanc e whic h al l passenge r ca r
tire s mus t mee t unde r th e Federa l
Moto r Vehicl e Safet y Standar d No .
109 . Grade s B an d A represen t
highe r level s o f performanc e o n th e
laborator y tes t whee l tha n th e
minimu m require d b y law .
Warning
: Th e temperatur e grad e fo r
thi s tir e is establishe d fo r a tir e tha t
i s properl y inflate d an d no t over -
loaded . Excessiv e speed , underinfla -
tion , o r excessiv e loadin g eithe r
separatel y o r i n combination , ca n
caus e hea t build-u p an d possibl e tir e
failure .
Technical Informatio n
Inde
x
Emergencie s o n th e Roa d
Brak e Syste m Indicator............ 294
Changin g a Fla t Tire................ . 27 7
Chargin g Syste m Indicator..... . 29 2
Checkin g th e Fuses.................. . 29 6
Lo w Oi l Pressur e Indicator..... . 29 1
Malfunctio n Indicato r Lamp... . 29 3
Manuall y Closin g Moonroof... . 29 5
Overheate d Engine.................. . 28 8
Emergenc y Brake......................... . 10 0
Emergenc y Flashers...................... . 6 6
Emission s Controls....................... . 31 4
Engin e
Coolan t Temperatur e Gaug e .... . 5 9
Driv e Belts................................. . 24 4
Malfunctio n Indicato r
Lamp................................ . 55 , 29 3
Oi l Pressur e Indicator........ . 54 , 29 1
Oil , Wha t Kin d t o Use.............. . 21 2
Overheating............................... . 28 8
Specifications.................... . 307 , 30 9
Ethano l i n Gasoline...................... . 31 2
Evaporativ e Emission s Controls. . 31 4
Exhaus t Fumes............................... . 4 9
Expectan t Mothers , Us e o f Sea t
Belt s by........................................ . 1 8 Exterior
, Cleanin g the.................. . 26 8
Fabric , Cleaning............................ . 27 0
Fan , Interior.......................... .110 , 12 1
Features , Comfor t an d
Convenience.............................. . 10 9
Fillin g th e Fue l Tank.................... . 16 1
Filter s
Ai r Cleaner................................ . 23 1
Ai r Conditioning....................... . 24 4
Oil............................................... . 21 4
Firs t Gear , Shifting....................... . 18 2
5-spee d Manua l Transmissio n
Checkin g Flui d Level............... . 22 7
5-spee d Manua l Transmissio n
Shiftin g the................................ . 17 7
Flashers , Hazar d Warning............. . 6 6
Fla t Tire , Changin g a................... . 27 7
Fluid s
Automati c Transmission.......... . 22 5
Brake.......................................... . 22 8
Clutch......................................... . 22 9
Manua l Transmission.............. . 22 7
Powe r Steering.......................... . 23 0 Windshiel
d Washer.................. . 22 4
F M Stere o Radi o
Reception........................... .126 , 13 8
Foldin g Rea r Seat........................... . 9 3
Foreig n Countries , Drivin g in..... . 31 3
Four-wa y Flashers.......................... . 6 6
Fron t End , Towin g b y
Emergenc y Wrecker................ . 30 1
Fuel................................................. . 16 0
Fil l Doo r an d Cap...................... . 16 1
Gauge........................................... . 5 9
Octan e Requirement................ . 16 0
Oxygenated............................... . 31 2
Reserv e Indicator........................ . 5 7
Tank , Fillin g the........................ . 16 1
Fuses , Checkin g the..................... . 29 6
Ga s Mileage , Improving............... . 16 7
Gasohol.......................................... . 31 2
Gasoline......................................... . 16 0
Fue l Reserv e Indicator............... . 5 7
Gauge........................................... . 5 9
Octan e Requirement................ . 16 0
Tank , Fillin g the........................ . 16 1
Inde
x
Thef t Protection............................ . 15 6
Thre e Wa y Catalyti c Converter.. . 31 6
Time , Settin g the.......................... . 10 1
Timin g Belt.................................... . 24 5
Tir e Chains.................................... . 25 1
Tire , Ho w to Chang e a Flat......... . 27 7
Tires............................................... . 24 6
Ai r Pressure.............................. . 24 6
Checkin g Wear......................... . 24 7
Compac t Spare.......................... . 27 6
DO T Tir e Qualit y Grading...... . 31 0
Inflation...................................... . 24 6
Inspection.................................. . 24 7
Maintenance.............................. . 24 8
Replacing................................... . 24 9
Rotating...................................... . 24 9
Snow........................................... . 25 1
Specifications.................... . 307 , 30 9
Tir e Chains................................ . 25 1
Technica l Information............. . 31 0
Winte r Driving.......................... . 25 0
Tools , Tir e Changing................... . 27 7
Towin g
A Trailer..................................... . 19 0
Emergenc y Wrecker................ . 30 1
Transmissio
n
Checkin g Flui d Level ,
Automatic.............................. . 22 5
Checkin g Flui d Level ,
Manual................................... . 22 7
Flui d Selectio n .................. . 226 , 22 7
Identificatio n Number.............. . 30 5
Shiftin g th e Automatic............. . 17 9
Shiftin g the Manual.................. . 17 7
Treadwear..................................... . 31 0
Tri p Meter....................................... . 5 9
Trunk................................................ . 8 1
Openin g the................................. . 8 1
Ope n Monito r Light................... . 5 6
Tur n Signals.................................... . 6 4
Underside , Cleaning..................... . 27 2
Unexpected , Takin g Car e
o f the.......................................... . 27 5
Unifor m Tir e Qualit y Grading.... . 31 0
Unleade d Gasoline........................ . 16 0
Upholster y Cleaning..................... . 27 0
Use d Oil , Ho w to Dispos e of....... . 21 6 Vanit
y Mirror................................ . 10 4
Vehicl e Capacit y Loa d ................. . 17 1
Vehicl e Dimension s ............. . 306 , 30 8
Vehicl e Identificatio n Number.... . 30 4
Vehicl e Storage............................. . 26 6
Ventilation............................. .113 , 11 7
VIN................................................. . 30 4
Viny l Cleaning............................... . 27 0
Viscosity , Oil.................................. . 21 3
Warnin g Beeper s
Headlight s on.............................. . 6 2
Ke y i n Ignition............................. . 7 6
Sea t Belts............................... . 40 , 5 2
WARNING , Explanatio n of............. . i i
Warnin g Labels , Locatio n of......... . 5 0
Warrant y Coverages*.................. . 32 1
Washer , Windshiel d
Checkin g th e Flui d Level........ . 22 4
Indicator....................................... . 5 7
CONTINUED