Volvo S60 inscription, Owner'S Manual Supplement

Page: 85 / 170

PRACTICAL INFORMATION
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•
B-pillar
: The structural member at the side
of the vehicle behind the front door.
•
Bead area of the tire
: Area of the tire next
to the rim.
•
Sidewall of the tire
: Area between the bead
area and the tread.
•
Tread area of the tire
: Area of the perime-
ter of the tire that contacts the road when
mounted on the vehicle.
•
Rim
: The metal support (wheel) for a tire or a
tire and tube assembly upon which the tire
beads are seated.
•
Maximum load rating
: a figure indicating
the maximum load in pounds and kilograms
that can be carried by the tire. This rating is
established by the tire manufacturer.
•
Maximum permissible inflation pressure
:
the greatest amount of air pressure that
should ever be put in the tire. This limit is set
by the tire manufacturer.
•
Recommended tire inflation pressure
:
inflation pressure, established by Volvo,
which is based on the type of tires that are
mounted on a vehicle at the factory. This
information can be found on the tire inflation
placard(s) located on the driver's side B-pillar
and in the tire inflation table in this chapter.
•
Cold tires
: The tires are considered to be
cold when they have the same temperature
as the surrounding (ambient) air. This tem-
perature is normally reached after the vehicle
has been parked for at least 3 hours.
Tire specifications – Uniform Tire
Quality Grading
ALL PASSENGER VEHICLE TIRES MUST
CONFORM TO FEDERAL SAFETY REQUIRE-
MENTS IN ADDITION TO THESE GRADES
.
Quality grades can be found, where applica-
ble, on the tire sidewall between the tread
shoulder and maximum section width. For
example:
Treadwear 200 Traction AA Temperature A
TREADWEAR
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov-
ernment test course. For example, a tire graded
150 would wear one and one half (1 ½) 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, maintenance practi-
ces 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. The traction