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:
Power switch and volume control
The dial is used for both power (ON/OFF) and volume control. The radio is turned
ON and OFF by pressing the dial, and the volume is controlled by turning the dial. ...
Select lever/gear position indicator
1) Upshift/downshift indicator (AT and CVT models)
This indicator shows the position of the shift lever (MT models) or select lever
(AT and CVT models). ...
Maintenance precautions
When maintenance and service are required, it is recommended that all work be
done by an authorized SUBARU dealer.
If you perform maintenance and service by yourself, you should familiarize yoursel ...
