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:
Gasoline Specifications (U.S. and Canada Only)
At a minimum, gasoline should meet
ASTM specification D 4814
in the United States or CAN/CGSB-3.5 or 3.511 in Canada.
Some gasolines contain an
octane-enhancing additive called
methylcyclopen ...
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If You Cannot See the HUD Image When the Ignition Is On
• Is anything covering the
HUD lens?
• Is the HUD dimmer setting bright
enough?
• Is the HUD image adjusted to
the proper height?
• Are you wearing polarized
sunglasses?
• Still ...