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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    Closing Sunroof — Express
    Press the switch forward and release it within one-half second and the sunroof will close automatically from any position. The sunroof will close fully and stop automatically. This is called “E ...

    Storing a Station as a Favorite
    Stations from all bands can be stored in any order in the favorite pages. Up to six stations can be stored in each favorite page and the number of available favorite pages can be set. Stor ...

    Summer and winter tires
    The arrows shows the direction of rotation of the tire When switching between summer and winter tires, mark the tires to indicate where they were mounted on the car, e.g., LF = left front, RR ...