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:

    Trailer Towing (CTS-V and Coupe)
    The vehicle is neither designed nor intended to tow a trailer. ...

    Heated Rear Seats
    The buttons are on the Rear Sear Audio (RSA) panel on the rear of the center console. Press or to heat the left outboard or right outboard seat cushion and to cycle through the temperature s ...

    Passing Another Vehicle While Using Cruise Control
    Use the accelerator pedal to increase the vehicle's speed. When you take your foot off the pedal, the vehicle will slow down to the previous set cruise speed. ...