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:
Recommended shifting speeds
The best compromise between fuel economy and vehicle performance during normal driving is ensured by shifting up at the speeds listed in the following table.
...
Checking the oil level
1) Yellow handle
1. Park the vehicle on a level surface and stop the engine.
2. Pull out the level gauge, wipe it clean, and insert it again.
1) Upper level
2) Lower level
3. Pull out the lev ...
System servicing
- When discarding a seatbelt retractor
assembly or scrapping
the entire vehicle damaged by a
collision, consult your SUBARU
dealer.
- Tampering with or disconnecting
the system’s wiring ...
