Gasoline Specifications (U.S. and Canada Only)

GMC Sierra / GMC Sierra Owners Manuals / Driving and Operating / Fuel / Gasoline Specifications (U.S. and Canada Only)

At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB-3.5 or 3.511 in Canada. Some gasolines contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT). We recommend against the use of gasolines containing MMT. See Fuel Additives on page 9‑75 for additional information.

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    Roof
    Sunroof The ignition must be in ON/RUN or ACC/ACCESSORY to operate the sunroof and power sunshade. See Retained Accessory Power (RAP) on page 9‑20. The vehicle may have a sunroof over the fro ...

    Cargo Tie-Downs
    Four cargo tie-downs are located in the rear compartment of the vehicle. The tie-downs can be used to secure small loads. ...

    Lap-Shoulder Belt
    All seating positions in the vehicle have a lap-shoulder belt. If you are using a rear seating position with a detachable safety belt and the safety belt is not attached, see “Returning the Seat to ...