Do not switch to a different viscosity in
the event of brief temperature change.
Caution
Using engine oils of a viscosity other
than recommended could result in
engine damage and repair not
covered under warranty.
Replace Engine Oil and
Oil Filter
Caution
This job requires special skills, tools
and equipment.
Be sure you are competent for this
job before attempting to complete it.
If you are not confident, you must
have the work done by your
CHEVROLET retailer.
Otherwise, you could be injured or
your vehicle could be damaged.
Engine oil loses its ability to lubricate
when contaminated. Make sure you
change your engine oil according to the
maintenance schedule.
Make sure you replace the engine oil
filter each time you change the engine
oil.
Under severe conditions, you must
change the oil and filter more fre-
quently than is recommended in the
standard maintenance schedule.
Caution
Use of unauthorized or low quality
engine oil or chemical engine
treatments (additives) can damage
the engine and void your vehicle
warranty.
Severe conditions include, but are not
limited to:
— Frequent cold starting.
— Frequent driving in stop and go
traffic.
— Frequent short trips.
— Frequent driving when the outside
temperature remains below freezing.
— Prolonged idling.
— Frequent low-speed driving.
— Driving in dusty areas.
Vehicle Maintenance 107
Engine Oil Additives/Engine Oil
Flushes
Do not add anything to the oil. The use
of engine oil additives could cause
engine damage not covered by the
vehicle warranty. Engine oil system
flushes are not recommended and could
cause engine damage not covered by
the vehicle warranty.
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