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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Checking the fluid level
1) “MAX” level mark
2) “MIN” level mark
Check the fluid level monthly.
Check the fluid level on the outside of the
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Change the oil and oil filter according to
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The engine oil and oil filter must be
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