Buick Regal: Fuel E85 (85% Ethanol) - Performance and Maintenance - In Brief - Buick Regal Owners ManualBuick Regal: 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) . For all other vehicles, use only the unleaded gasoline described under Recommended Fuel .

    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 sho ...

    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 abrupt ...

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    Illuminated engine start/stop button
    Whenever the front door is opened, the engine start/stop button will illuminate for your convenience. The light will go off after about 30 seconds when the door is closed. ...

    Ignition off
    Automatic transmission: press the Start/Stop button again, and do not press on the brake pedal at the same time. Manual-shift transmission: press the Start/Stop button again, and do not press o ...

    Setting and storing the parking position
    You can position the front-passenger side exterior mirror in such a way that you can see the rear wheel on that side as soon as you engage reverse gear. You can store this position. •` ...