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:
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 ...
Customer Assistance Offices (U.S. and Canada)
Cadillac encourages customers to call the toll-free number for assistance.
However, if a customer wishes to write or e-mail Cadillac, the letter should be
addressed to:
United States
Cadillac ...
Special Application Services
. Severe Commercial Use Vehicles Only: Lubricate chassis components every 5
000 km/3,000 mi.
- Have underbody flushing service performed once a year. ...