User Guide
As
shown
in
the chart,
SAE
5W-30
is best for your
vehicle. However,
you
can use
SAE
low-30
if
it’s
going
to be
0°F
(-1
8°C)
or above. These numbers
on
an
oil
container show
its
viscosity, or thickness.
Do
not
use
other viscosity oils, such as
SAE
20W-50.
I
NOTICE:
Use only engine oil with the American Petroleum
Institute Certified For Gasoline Engines
“Starburst” symbol. Failure to use the
recommended oil can result in engine damage not
covered
by
your warranty.
GM Goodwrench@ oil meets all the requirements
for
your
vehicle.
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
See if any
one
of these
is
true for you:
a
a
a
a
a
Most trips are less than
5
to
10
miles
(8
to
I6
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.
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
occurs first.
If
none
of
them
is
true, change the oil and filter every
7,500
miles
(
12
500
km)
or
I2
months
--
whichever
occurs first. Driving a vehicle
with
a
fully
warmed
engine under highway conditions causes engine
oil
to
break down slower.
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