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:
Interior lights
When leaving your vehicle, make sure the lights are turned off to avoid battery discharge. ...
Ride, Handling & Braking
Employing a car-based four-wheel-independent suspension since its mid-1990s
inception, the Outback displays admirable ride quality. It soaks up bumps with
little driver disturbance but maintains g ...
Spark plugs
It may be difficult to replace the spark
plugs. It is recommended that you have
the spark plugs replaced by your
SUBARU dealer.
The spark plugs should be replaced
according to the maintenance ...
