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:

    ENGINE OVERHEATED — IDLE ENGINE
    This message displays when the engine coolant temperature is too hot. Stop and allow the vehicle to idle until it cools down. ...

    Theft-Deterrent Systems
    Vehicle theft is big business, especially in some cities. Although your vehicle has a number of theft-deterrent features, we know that nothing we put on it can make it impossible to steal. ...

    Door Ajar Messages
    DRIVER DOOR OPEN This message will display when the driver door is open. Close the door completely. HOOD OPEN This message will display when the hood is open. Close the hood completely. LE ...