Buick 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 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:
Disconnecting an external device
The external device is automatically disconnected from the audio system if it
is moved out of range ...
Opening the trunk manually
The trunk is held closed by an electronic locking mechanism. To open:
1. Press lightly on the rubberized plate under the handle to release the lock.
2. Lift the handle to open the trunk lid.
CA ...
Three-way catalytic converter
Keep your engine properly tuned. Certain engine malfunctions, particularly
involving the electrical, fuel or distributor ignition systems, may cause unusually
high threeway catalytic converte ...
