Buick Regal: Fuel - Object Detection Systems - Driving and Operating - Buick Regal Owners ManualBuick Regal: 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.

The eighth digit of the Vehicle Identification Number (VIN) shows the code letter or number that identifies the vehicle's engine.

The eighth digit of the Vehicle Identification Number (VIN) shows the code letter or number that identifies the vehicle's engine.

The VIN is at the top left of the instrument panel. See Vehicle Identification Number (VIN) .

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 .

    Ultrasonic Parking Assist
    For vehicles with the Ultrasonic Rear Parking Assist (URPA) system, it assists the driver with parking and avoiding objects while in R (Reverse). URPA operates at speeds less than 8 km/h (5 mph), and ...

    Recommended Fuel
    If the vehicle has a 2.4L L4 engine (VIN Code C), 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 r ...

    See also:

    Brightness button
    To change the display brightness, press the button. Pressing the button again will change the display to the day or the night display. If no operation is performed within 5 seconds, the disp ...

    Following the initial pairing
    ▷ The mobile phone is detected/connected in the vehicle within a short period of time when the engine is running or the ignition is switched on. ▷ The phone book entries of the tele ...

    Folding the seat backrest back
    •► Move the driver's or front-passenger seat forward if necessary. ! Make sure that the seat belt does not become trapped when folding the rear seat backrest back. Otherwise, it could ...