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:
Tire Pressure
Tires need the correct amount of
air pressure to operate
effectively.
Notice:
Neither tire
underinflation nor
overinflation is good.
Underinflated tires, or tires
that do not have enough ...
Reporting Safety Defects to theCanadian Government
If you live in Canada, and you believe that your
vehicle has a safety defect, you should
immediately notify Transport Canada, in addition
to notifying General Motors of Canada Limited.
You may c ...
Maintenance When Trailer Towing
Your vehicle will need service more often when
you’re pulling a trailer. See the Maintenance
Schedule for more on this. Things that are
especially important in trailer operation are
automatic tr ...