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:
Roominess & Cargo
Front-seat legroom and headroom was fine for me (about 6 feet tall), even
with the panoramic moonroof that comes on most trim levels. The seats have
slight side bolsters that come in handy during ...
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 sched ...
Headlight flasher
CAUTION
Do not hold the lever in the flashing position for more than just a few seconds.
To flash the headlights, pull the lever toward you and then release it. The high
beam will stay on for as ...
