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:
Repair Facility
GM also recommends that you choose a collision repair facility that meets your
needs before you ever need collision repairs. Your dealer may have a collision repair
center with GM-trained technici ...
Braking
Braking action involves perception time and reaction time. Deciding to push
the brake pedal is perception time. Actually doing it is reaction time.
Average driver reaction time is about three-quar ...
Body Component Lubrication
Lubricate all key lock cylinders, hood hinges, liftgate hinges, and steel fuel
door hinge unless the components are plastic. Applying silicone grease on weatherstrips
with a clean cloth will make ...