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:
Dual Automatic Climate Control System
A. Driver and Passenger Heated Seats (If Equipped)
B. Driver and Passenger Temperature Controls
C. Air Delivery Modes
D. Heated Steering Wheel (If Equipped)
E. Recirculation
F. Air Conditi ...
Insuring Your Vehicle
Protect your investment in your GM vehicle with
comprehensive and collision insurance coverage.
There are significant differences in the quality
of coverage afforded by various insurance policy
...
Recommended Fuel
Use regular unleaded gasoline with a posted octane rating of 87 or higher. If
the octane rating is less than 87, an audible knocking noise, commonly referred
to as spark knock, might be heard when ...