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:

    How to Reset the Engine Oil Life System
    The Engine Oil Life System calculates when to change the engine oil and filter based on vehicle use. Whenever the oil is changed, reset the system so it can calculate when the next oil change is ...

    Call Waiting
    Call waiting must be supported on the cell phone and enabled by the wireless service carrier. Press to answer an incoming call when another call is active. The original call is placed on hol ...

    Increasing Speed While Using Cruise Control
    If the cruise control system is already activated: • Move the thumbwheel up toward RES/+ and hold it until the vehicle accelerates to the desired speed, and then release it. • To incre ...