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:
Sculpted design
Buick's long heritage of leading designs, such as the Y-Job Concept, the
Roadmaster and the Riviera, helped define American automobile design through the
years, according to Ed Welburn, vice presi ...
Additional Required Services
At Each Fuel Stop
• Engine oil level check. See Engine Oil.
• Engine coolant level check. See Engine Coolant
(4.6L Engine) or Engine Coolant
(3.9L Engine).
• Windshield washer fluid level check. See Windshi ...
Radio Reception
You may experience frequency interference and
static during normal radio reception if items
such as cellphone chargers, vehicle convenience
accessories, and external electronic devices
are plugged ...