Notice:Use only engine oil
identi ed as meeting GM Standard
GM6094M and showing the
American Petroleum Institute
Certi ed For Gasoline Engines
starburst symbol. Failure to use
the recommended oil can result
in engine damage not covered by
the vehicle warranty.
Cold Temperature Operation
If in an area of extreme cold,
where the temperature falls
below−20°F (−29°C), use either
an SAE 5W-30 synthetic oil or an
SAE 0W-30 engine oil. Both provide
easier cold starting for the engine at
extremely low temperatures. Always
use an oil that meets the required
speci cation, GM6094M. See “What
Kind of Engine Oil to Use” for more
information.
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 ushes are not
recommended and could cause
engine damage not covered by
the vehicle warranty.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system
that indicates when to change the
engine oil and lter. This is based
on engine revolutions and engine
temperature, and not on mileage.
Based on driving conditions, the
mileage at which an oil change is
indicated can vary considerably.
For the oil life system to work
properly, the system must be reset
every time the oil is changed.When the system has calculated
that oil life has been diminished,
it indicates that an oil change is
necessary. A CHANGE ENGINE OIL
SOON message comes on. Change
the oil as soon as possible within
the next 600 miles (1 000 km). It is
possible that, if driving under the best
conditions, the oil life system might
not indicate that an oil change is
necessary for over a year. However,
the engine oil and lter must be
changed at least once a year and at
this time the system must be reset.
Your dealer/retailer has trained
service people who will perform this
work using genuine parts and reset
the system. It is also important to
check the oil regularly and keep it
at the proper level.
If the system is ever reset
accidentally, the oil must be changed
at 3,000 miles (5 000 km) since the
last oil change. Remember to reset
the oil life system whenever the oil is
changed.
Service and Appearance Care 5-13
