Chevrolet Malibu Hybrid 2008 Owner's Manual page 274

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(G) Maximum Cold Inflation Load Limit
Maximum load that can be carried and the
maximum pressure needed to support that load.
For information on recommended tire pressure
see Inflation - Tire Pressure on page 5-50
and Loading Your Vehicle on page 4-20.
Tire Size
The following illustration shows, an example of,
a typical passenger car tire size.
(A) Passenger (P-Metric) Tire
version of a metric tire sizing system. The letter P
as the first character in the tire size means a
passenger vehicle tire engineered to standards
set by the U.S. Tire and Rim Association.
5-46
:
The United States
:
(B) Tire Width
The three-digit number indicates
:
the tire section width in millimeters from sidewall
to sidewall.
(C) Aspect Ratio
A two-digit number that
:
indicates the tire height-to-width measurements.
For example, if the tire size aspect ratio is 75,
as shown in item C, of the illustration, it would
mean that the tire's sidewall is 75 percent as high
as it is wide.
(D) Construction Code
to indicate the type of ply construction in the tire.
The letter R means radial ply construction; the
letter D means diagonal or bias ply construction;
and the letter B means belted-bias ply
construction.
(E) Rim Diameter
Diameter of the wheel in
:
inches.
(F) Service Description
indicates the load range and speed rating of a
tire. The load index can range from 1 to 279.
Speed ratings range from A to Z.
A letter code is used
:
The service description
:

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