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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    Bulb Replacement
    For the proper type of replacement bulbs, see Replacement Bulbs on page 10‑37. For any bulb changing procedure not listed in this section, contact your dealer. ...

    Connections
    OnStar Hands-Free Calling allows calls to be made and received from the vehicle. The vehicle can also be controlled from a cell phone through the OnStar mobile app. See www.onstar.com for coverage ...

    Front Fog Lamp Light
    For vehicles with fog lamps, this light comes on when the fog lamps are on. The light goes out when the fog lamps are turned off. See Fog Lamps on page 6‑6 for more information. ...