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 Compartment Overview
When you open the hood on the 4.2L L6 engine, here is what you will see:
A. Engine Air Cleaner/Filter.
B. Engine Coolant Recovery Tank.
C. Windshield Washer Fluid Reservoir.
D. Power Steering Fl ...
Storing a Radio Station as a Favorite
Drivers are encouraged to set up their radio station
favorites while the vehicle is in P (Park). Tune to favorite
stations using the presets, favorites button, and
steering wheel controls if the ...
What to Use
Use a mixture of one-half clean, drinkable water
and one-half DEX-COOL® coolant. If you use
this coolant mixture, you do not need to add
anything else.
CAUTION:
Adding only plain water to your ...