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 ...

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    What Causes Corrosion?
    Corrosion is the result of deterioration or removal of paint and protective coatings from your vehicle. The most common causes are: • Road salt, dirt, and moisture accumulation. • Stone and ...

    System
    - Button feedback: Soft key confirmation tone on or off. - Clock adjust: Select 12 or 24 hour clock. Set current time. Select Date to change the date, or to alter the date format. Select Set, to ...

    Opening and closing the bonnet
    Opening and closing the bonnet Opening 1. Pull the bonnet release lever, located in the left-hand front footwell. 2. Lift the bonnet safety catch lever, located below the centre point of the bo ...