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:
AT and CVT models
CAUTION
If you restart the engine while the vehicle is moving, shift the select lever
into the “N” position. Do not attempt to place the select lever of a moving vehicle
into the “P” position.
1 ...
Tire pressures
Check and, if necessary, adjust the pressure of each tire (including the spare) at least once a month and before any long journey.
Check the tire pressure when the tires are cold. Use a pressure gaug ...
Recommended grade and viscosity
Each oil manufacturer has its own base oils and additives. Never use different
brands together. For details, refer to “Manual transmission, front differential
and rear differential gear oil” F12-6 ...
