Engine Oil Additives / Engine Oil Flushes
Buick Lucerne / Buick Lucerne Owners Manual / Service and Appearance Care / Checking Things Under
the Hood / Engine Oil / 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:
Engine Drive Belt Routing
2.4L L4 Engine ...
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requires
damage repairs, GM recommends
that you take an active role in its
repair. If you have a pre-determined
repair facility of choice, take the
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