Tires
Vehicle care and maintenance 9-15
9
The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specifiedgovernment test course. For example, a tire graded 150 would wear one and one-half (11/2) times as well on th
e government course
as a tire graded 100. The relative performance of tires depends upon th
e actual conditions of
their use, however, and may depart signifi- cantly from the norm due to variations in driving habits, service
practices and differ-
ences in road characteristics and climate.
The traction grades, from highest to lowest, are AA, A, B and C. Those grades representthe tire’s ability to stop on wet pavement as measured under contro
lled conditions on
specified government te
st surfaces of asphalt
and concrete. A tire
marked C may have poor
traction performance. 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 conditionson 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 corre- sponds to a level of performance which allpassenger car tires must meet under the Fed- eral Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels ofperformance on the laboratory test wheel than the minimum required by law.
N00939301984
Proper tire inflation pressure is essential forthe safe and satisfactory operation of your
vehicle. The wrong tire pressure will cause problems in three major areas: Safety Too little pressure increases flexing in the tire and can cause tire failure. Too much pressure can cause a tire to lose its abilityto cushion shock. Objects on the road and potholes could then ca
use tire damage that
may result in tire failure. Economy The wrong tire pressu
re can cause uneven
wear patterns in the tire tread. These abnormal wear patter
ns will reduce the
tread life, and the tire will have to bereplaced sooner. Too little pressure also makes it harder for the tire to roll, and this uses up more fuel. Ride comfort and vehicle stability The superior riding experience built into your vehicle partly de
pends on the correct
tire pressure. Too much pressure gives an uncomfortable and jarring ride. Too little pressure feels as if
your vehicle is slow to
respond. Unequal tire pressure
s can make steering
your vehicle uneven
and unpredictable.
The tire pressure for your vehicle under nor- mal driving conditions is listed on the placard attached to the driver’s door sill. (Refer to “Tire and loading information plac-ard” on page 11-3.)
MA
Code representing the tire manu- facturing location. (2 digits)
L9 ABCD
Code representing the tire size. (2 digits) Code used by tire manufacturer. (1 to 4 digits)
15
Number representing the week in which the tire was manufactured. (2 digits)
04
Number representing the year in which the tire was manufactured. (2 digits)
Treadwear, Traction and Temper- ature Grades Treadwear
Tr a c t i o n TemperatureTire inflation pressures
BK0267800US.book 15 ページ ２０１８年５月３０日 水曜日 午後４時２４分
Consumer information (For vehicles sold in U.S.A.) 10-2 Customer assistance/Re
porting Safety Defects
10
N01047101208
This information is provided in compliance with the requirements of the National High- way Traffic Safety Ad
ministration, Depart-
ment of Transportation. It provides the purchasers and/or prospective purchasers with information on repor
ting safety defects.
DOT quality grades - Al
l passenger vehicle
tires must conform to
Federal Safety Require-
ments in addition to these grades. The spe- cific grade rating in each grade category isshown on the side wall of the tires on your vehicle. The treadwear grade is a comparative rating based on the wear rate of
the tire when tested
under controlled conditions on a specifiedgovernment test course
. For example, a tire
graded 150 would wear one and one-half (11/2) 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 signifi- cantly from the norm due to variations indriving habits, service practices and differ- ences in road characteristics and climate. 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 te
st surfaces of asphalt
and concrete. A tire marked C may have poor traction performance. The temperature grades are A (the highest), B and C, representing the ti
re’s resistance to the
generation of heat and it
s ability to dissipate
heat when tested un
der 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 leadto sudden tire failure. The grade C corre- sponds to a level of performance which all passenger car tires must meet under the Fed-eral Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the labora
tory test wheel than
the minimum required by law.
N01047201599
If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform theNational Highway Traffic Safety Administration (NHTSA) in addi- tion to notifying Mitsubishi MotorsCorporation.
Consumer information (For vehicles sold in U.S.A.) Uniform tire quality grading Treadwear
Traction AA, A, B, C
WA R N I N G The traction grade assi
gned to this tire is
based on straight-ahead braking tractiontests, and does not include acceleration, cornering, hydroplani
ng, or peak traction
characteristics.
Temperature A, B, C
WA R N I N G The temperature grade for this tire is established for a tire that is properlyinflated and not overloaded. Excessive speed, underinflation
, or excessive load-
ing, either separately
or in combination,
can cause heat buildup and possible tire failure.
Reporting Safety Defects
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