333
Operation
Tires and wheels
1 Plies in sidewall
2 Plies under tread
i For illustration purposes only. Actual data
on tires are specific to each vehicle and may
vary from data shown in above illustration.
This marking tells you about the type of
cord and number of plies in the sidewall
and under the tread.
Accessory weight
The combined weight (in excess of those
standard items which may be replaced)
of automatic transmission, power steer-
ing, power brakes, power windows,
power seats, radio, and heater, to the ex-
tent that these items are available as fac-
tory-installed equipment (whether
installed or not).
Air pressure
The amount of air inside the tire pressing
outward on each square inch of the tire.
Air pressure is expressed in pounds per
square inch (psi), or kilopascal (kPa) or
bars.
Aspect ratio
Dimensional relationship between tire
section height and section width
expressed in percentage.
Bar
Another metric unit for air pressure.
There are 14.5038 pounds per square
inch (psi) to 1 bar; there are
100 kilopascals (kPa) to 1 bar.
Bead
The tire bead contains steel wires
wrapped by steel cords that hold the tire
onto the rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle
has been sitting for at least 3 hours or
driven no more than 1 mi (1.6 km).
Curb weight
The weight of a motor vehicle with stan-
dard equipment including the maximum
capacity of fuel, oil, and coolant, and, if
so equipped, air conditioning and addi-
tional optional equipment, but without
passengers and cargo.
DOT (Department of Transportation)
A tire branding symbol which denotes
the tire meets requirements of the
U.S. Department of Transportation.
Tire ply material Tire and loading terminology
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