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:
When checking or servicing in the engine compartment while the engine is running
WARNING
A running engine can be dangerous. Keep your fingers, hands, clothing, hair and
tools away from the cooling fan, belts and any other moving engine parts. Removing
rings, watches and ties ...
CHECK ENGINE warning light/Malfunction indicator lamp
CAUTION
If the CHECK ENGINE warning light/ malfunction indicator lamp illuminates while
you are driving, have your vehicle checked/repaired by your SUBARU dealer as soon
as possible. Continued ve ...
To turn off fuel consumption indicator display
The fuel consumption indicator display
can be turned off.
To turn off this display, turn the ignition
switch to the “LOCK” position and press
the “+” button adjacent to the information
displa ...
