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:
Changing the oil and oil filter
Change the oil and oil filter according to the maintenance schedule in the “Warranty
and Maintenance Booklet”.
The engine oil and oil filter must be changed more frequently than listed in
the mai ...
Lubricants
Engine oil
For the checking, adding and replacing procedure or other details, refer to “Engine
oil” F11-12.
NOTE
The procedure for changing the engine oil and oil filter should be performed
by ...
Changing the oil and oil filter
Change the oil and oil filter according to the maintenance schedule in the “Warranty
and Maintenance Booklet”.
The engine oil and oil filter must be changed more frequently than listed in
the mai ...
