Engine Oil Additives/Engine Oil Flushes

GMC Sierra / GMC Sierra Owners Manuals / 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:

    Capacities and Specifications
    The following approximate capacities are given in metric and English conversions. See Recommended Fluids and Lubricants on page 11‑12 for more information. Engine Specifications ...

    Sunroof
    The ignition must be in ON/RUN or ACC/ACCESSORY to operate the sunroof and power sunshade. See Retained Accessory Power (RAP) on page 9‑20. The vehicle may have a sunroof over the front seats ...

    Guidelines
    The RVC system has a guideline overlay that can help the driver align the vehicle when backing into a parking spot. If the vehicle has dual rear wheels, this feature will not be available. To turn t ...