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:
TTY Users
OnStar has the ability to communicate to the deaf, hard-of-hearing, or speech-impaired customers while in the vehicle. The available dealer-installed TTY system can provide in-vehicle access to all of ...
License Plate Lamp
To replace one of these bulbs:
1. Remove the two screws holding each of the license plate lamps to the liftgate trim.
2. Turn and pull the license plate lamp forward through the liftgate trim open ...
Under the Hood
The Savana can be equipped with one of four engines: a 195-horsepower,
4.3-liter V-6; a 285-hp, 4.8-liter V-8; a 295-hp, 5.3-liter V-8; or a 300-hp,
6.0-liter V-8. Each engine teams with a four-sp ...





