GMC Terrain: Fuel - Fuel - Driving and Operating - GMC Terrain Owner's ManualGMC Terrain: Fuel

Use of the recommended fuel is an important part of the proper maintenance of this vehicle. To help keep the engine clean and maintain optimum vehicle performance, we recommend the use of gasoline advertised as TOP TIER Detergent Gasoline.

Look for the TOP TIER label on the fuel pump to ensure gasoline meets enhanced detergency standards developed by auto companies. A list of marketers providing TOP TIER Detergent Gasoline can be found at www.toptiergas.com.

Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded

Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). See Fuel E85 (85% Ethanol) on page 9‑53. For all other vehicles, use only the unleaded gasoline described under Recommended Fuel on page 9‑51.

    Fuel
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    Recommended Fuel
    Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when ...

    See also:

    Location of the fuse boxes
    1 Engine compartment 2 Under the glove compartment 3 Under the glove compartment 4 Cargo area ...

    Brake systems (amber)
    Brake systems (amber) Illuminates briefly when the ignition is switched on. If the lamp illuminates after starting the engine or while driving, suspect worn brake pads or a fault with the Emerg ...

    Seat Heaters
    If equipped Both front seats are equipped with seat heaters. The passenger seat only has heaters in the seat bottom because of the side airbag cutoff system. The ignition switch must ...