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:
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PTY (Program type) group tuning only FM reception)
Press the indicated button to change to
the PTY selection mode. At this time, the
PTY group that you are currently listening
to (type A, B and C audio)/that you
selected the last time (type ...
Tire rotation
Vehicles equipped with 4 non-unidirectional tires
1) Front
Vehicles equipped with unidirectional tires
1) Front
Tire wear varies from wheel to wheel. To maximize the life of each tire and ensu ...
