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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    Engine Cooling when Trailer Towing
    The cooling system may temporarily overheat during severe operating conditions. See Engine Overheating. ...

    Engine compartment
    CAUTION Never use a fuse of a higher or lower amperage rating than specified on the fuse box cover. This could damage the electrical system or cause a fire. If any electrical equipment does not ...

    Service Request
    At a glance Sends information to your service partner to request the arrangement of a service appointment. The TeleService data is transmitted during a Service Request. If possible, your service ...