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Engine Oil Additives
Don't add anything to your oil. Your GM dealer is ready
to advise if you think something should be added.
When to Change Engine Oil
If any one of these is true for you. use the short tripkity
.
maintenance schedule:
a
a
a
0
a
Most trips are less than 5 to
10
miles ( 8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
Most trips include extensive idling (such as frequent
driving in stop-and-go traffic).
You operate your vehicle in dusty
areas or
off-road frequently.
You frequently tow
a
trailer or use a currier on top of
your vehicle.
The vehicle is used for delivery service. police, taxi
or other commercial application.
Driving under these conditions causes engine oil to
break down sooner. If any one of these is true for your
vehicle, then you need to change your oil and filter
every 3.000 miles ( 5 000 km) or 3 months
--
whichever
occllrs first.
If none of them is true, use the long trip/highway
maintenance schedule. Change the oil and filter every
7,500 miles
(
12 500 km) or 12 months
--
whichever
occurs first. Driving a vehicle with a fully warmed
engine under highway conditions causes engine oil to
break down slower.
Remote Oil Filter (Four-wheel Drive)
The access door for the remote oil filter is in the steering
linkage shield assembly located under the radiator
support. Twist the screw to unlock or lock the door.
Make sure
if
you open the door. it is securely closed
when
~ O L I
are finished.
6-12
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