Engine Oil Additives/Engine Oil Flushes

Buick Regal / Buick Regal Owners Manual / Vehicle Care / Vehicle Checks / Engine Oil / Engine Oil Additives/Engine Oil Flushes

Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection.

Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty.

    See also:

    Sunroof
    The vehicle may be equipped with a power sliding sunroof. To open or close the sunroof, the ignition must be turned to ON, ACCESSORY, or Retained Accessory Power (RAP) must be active. Press and ...

    Radio Messages
    Calibration Error: The audio system has been calibrated for the vehicle from the factory. If Calibration Error displays, it means that the radio has not been configured properly for the vehicle ...

    Automatic Transmission
    The automatic transmission has a shift lever located on the console between the seats. The selected gear is also shown in the instrument cluster. P (Park): This position locks the drive wheels ...