1998 Volvo S90
recommended on the tire information label*
located on the rear facing side on the right front
door. This label lists both tire and vehicle design
limits. Do not load your car beyond the load limits
indicated.
*Please note that the tire information label
indicates pressures for both comfort and fuel
economy.
Wheels and tires (cont.)
pg. 75
Uniform tire quality grading
ALL PASSENGER CAR TIRES MUST
CONFORM TO FEDERAL SAFETY
REQUIREMENTS IN ADDITION TO THESE
GRADES
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 at 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
many depart significantly from the norm due to
variation in driving habits, service practices and
differences in road characteristics and climate.
TRACTION
The traction grades, from highest to lowest, are
AA, A, B, and C, as measured under controlled
conditions on specified government test surfaces
of asphalt and concrete. A tire marked C may
have poor traction performance.
TEMPERATURE
The temperature grades are AA (the highest), A,
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 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. Excessive speed,
underinflation, or excessive loading, either
separately or in combination, can cause heat
buildup and possible tire failure.
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