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:
Unable to Connect to OnStar
Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message
may come on. Push to try the
call again or try again after driving a
few miles into ...
Services Not Included in Roadside Service
Impound towing caused by violation of any laws.
Legal fines.
Mounting, dismounting, or changing of snow tires, chains, or other traction
devices.
Towing or services for vehicles driven on ...
Going & Stopping
Don't let its 265-horsepower rating fool you: The base V-6 left me wanting.
Displacing 3.0 liters, it's in the same direct-injection family as the 3.6-liter
V-6 that adeptly moves several GM produ ...