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:
Exterior
Described by Buick as having a "refined ruggedness," the Rendezvous has an
overall shape like that of an SUV, augmented by details that promote a youthful
image. Sharp lines take precede ...
OnStar®
If the vehicle has OnStar and you subscribe to the
OnStar services, please refer to the OnStar Terms and
Conditions for information on data collection and use. ...
Setting the Clock
See Clock (Radio with CD and
Touchscreen) for more
information. ...