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

(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:

    Engine hood
    To open the hood: 1. If the wiper blades are lifted off the windshield, return them to their original position. 2. Pull the hood release knob under the instrument panel. 3. Release the secondar ...

    Use of engine braking
    Remember to make use of engine braking in addition to foot braking. When descending a grade, if only the foot brake is used, the brakes may start working improperly because of brake fluid over ...

    Before driving your vehicle
    Before entering the vehicle, remove any snow or ice from your shoes because that could make the pedals slippery and dangerous. While warming up the vehicle before driving, check that the acce ...