5-31SERVICE AND APPEARANCE CARE
85Z14-03E
Cold Inflation Pressure:
The amount of air pressure in a tire, mea-
sured in pounds per square inch (psi)
before a tire has built up heat from driving.
Curb Weight:
This means the weight of a motor vehicle
with standard and optional equipment
including the maximum capacity of fuel, oil
and coolant, but without passengers and
cargo.
DOT Markings:
A code molded into the sidewall of a tire
signifying that the tire is in compliance with
the U.S. Department of Transportation
motor vehicle safety standards. The DOT
code includes the Tire Identification Num-
ber (TIN), an alphanumeric designator
which can also identify the tire manufac-
turer, production plant, brand and date of
production.
GVWR:
Gross Vehicle Weight Rating.
This is the maximum permissible overall
weight of the fully loaded vehicle (including
all occupants, accessories and cargo).
GAWR:
Gross Axle Weight Rating.
This is the maximum permissible weight on
an individual axle.
Intended Outboard Sidewall:
The side of an asymmetrical tire that must
always face outward when mounted on a
vehicle.Kilopascal (kPa):
The metric unit for air pressure. There are
6.9 kPa’s to one psi.
Light Truck (LT-Metric) Tire:
A tire used on light duty trucks and some
multipurpose passenger vehicles.
Load Index:
An assigned number ranging from 1 to 279
that corresponds to the load carrying
capacity of a tire.
Maximum Inflation Pressure:
The maximum air pressure to which a cold
tire may be inflated. The maximum air
pressure is molded onto the sidewall.
Maximum Load Rating:
The load rating for a tire at the maximum
permissible inflation pressure for that tire.
Maximum Loaded Vehicle Weight:
The sum of curb weight; accessory weight;
vehicle capacity weight; and production
options weight.
Normal Occupant Weight:
The number of occupants a vehicle is
designed to seat multiplied by 150 pounds
(68 kg).
Occupant Distribution:
Distribution of occupants in a vehicle as
specified in the third column of Table 1
(shown below).
Outward Facing Sidewall:
The side of a asymmetrical tire that has a
particular side that faces outward whenmounted on a vehicle. The side of the tire
that contains a whitewall, bears white let-
tering or bears manufacturer, brand and or
model name molding that is higher or
deeper than the same moldings on the
other sidewall of the tire.
Passenger (P-Metric) Tire:
A tire used on passenger cars and some
light duty trucks and multipurpose vehicles.
Production Options Weight:
The combined weight of those installed
regular production options weighing over
2.3 kilograms in excess of those standard
items which they replace, not previously
considered in curb weight or accessory
weight, including heavy duty brakes, ride
levelers, roof rack, heavy duty battery, and
special trim.
Recommended Inflation Pressure:
Vehicle manufacturer’s recommended tire
inflation pressure shown on the tire plac-
ard.
Radial Ply Tire:
A pneumatic tire in which the ply cords that
extend to the beads are laid at 90 degrees
to the centerline of the tread.
Rim:
A metal support for a tire and upon which
the tire beads are seated.
Sidewall:
The portion of a tire between the tread and
the bead.
Tires:
