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:
How to jump start
1. Make sure the booster battery is 12 volts and the negative terminal is grounded.
2. If the booster battery is in another vehicle, do not let the two vehicles touch.
3. Turn off all unnecessary li ...
Driving tips
Do not drive with your foot resting on the clutch pedal and do not use the clutch
to hold your vehicle at a standstill on an upgrade. Either of those actions may
cause clutch damage.
Do not drive ...
Transmission control system warning
If the “AT OIL TEMP” warning light flashes after the engine has started, it may
indicate that the transmission control system is not working properly. Contact your
nearest SUBARU dealer for servic ...
