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:
Reporting Safety Defects toGeneral Motors
In addition to notifying NHTSA (or Transport
Canada) in a situation like this, we certainly hope
you will notify us.
Please call us at 1-800-521-7300, or write:
Buick Customer Assistance Cente ...
Maintenance II
• Perform all services described in Maintenance I.
• Steering and suspension inspection. Visual
inspection for damaged, loose, or missing parts or
signs of wear.
• Engine cooling system in ...
Lamps On Reminder
For vehicles with the lamps on reminder light, it comes on when the lights are in use. ...