GMC Terrain: Fuel E85 (85% Ethanol) - Performance and Maintenance - In Brief - GMC Terrain Owner's ManualGMC Terrain: Fuel E85 (85% Ethanol)

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.

    Engine Oil Life System
    The engine oil life system calculates engine oil life based on vehicle use and displays the CHANGE ENGINE OIL SOON message when it is time to change the engine oil and filter. The oil life system ...

    Driving for Better Fuel Economy
    Driving habits can affect fuel mileage. Here are some driving tips to get the best fuel economy possible. ○ Avoid fast starts and accelerate smoothly. ○ Brake gradually and avoid abrup ...

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    Air Cleaner
    Air Cleaner If the air cleaner is clogged with dust, there will be greater intake resistance, resulting in decreased power output and increased fuel consumption. Check and clean periodically acc ...

    Automatic operation (AUTO)
    The AUTO mode may be used all year around as the system automatically controls constant temperature, air flow distribution and fan speed. To turn off the heater and air conditioner, turn the fa ...

    Exceptions
    There are several exceptions to the Normal Schedule. They are listed below: Normal vehicle axle maintenance: Rear axles and power take-off (PTO) units with synthetic fluid and light-duty trucks e ...