P Metric
With the P-Metric system, Section Width is measured in millimeters.
To convert millimeters into inches, divide by 25.4. The Aspect Ratio (Section Height divided by Section Width) helps provide more dimensional information about the tire size.
Example:

(1) P = Certain tire type used on light duty vehicles such as passenger cars
(2) Section Width in millimeters
(3) Aspect Ratio (= section height 7 section width).
(4) R = Radial Construction
(5) Rim diameter in inches
See also:
Climate control panel, audio panel, instrument panel, console panel, switches,
combination meter, and other plastic surface
Use a soft, damp cloth to clean the climate control panel, audio equipment, instrument
panel, center console, combination meter panel, and switches.
NOTE
Do not use organic solvents such as paint ...
Calculating total and load capacities varying seating configurations
Calculate the available load capacity
as shown in the following
examples:
Example 1A
Vehicle capacity weight of the
vehicle is 900 lbs (408 kg), which
is indicated on the vehicle placard
...
Non-turbo models
The non-turbo engine is designed to operate using unleaded gasoline with an octane
rating of 87 AKI or higher. ...
