Engine Oil Additives / Engine Oil Flushes

Do not add anything to the oil. The recommended oils with the starburst symbol that meet GM Standard GM6094M 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:

    TTY Users
    OnStar has the ability to communicate to the deaf, hard-of-hearing, or speech-impaired customers while in the vehicle. The available dealer-installed TTY system can provide in-vehicle acce ...

    Driving in Water
    Heavy rain can mean flash flooding, and flood waters demand extreme caution. Find out how deep the water is before you drive through it. If it is deep enough to cover your wheel hubs, axles, or ...

    Total Weight on Your Vehicle's Tires
    Be sure the vehicle's tires are inflated to the upper limit for cold tires. These numbers can be found on the Information label. See Vehicle Load Limits. Make sure not to go over the GVW li ...