As
shown in the chart,
SAE
5W-30
is
best for your
vehicle. However, you can use
SAE
1OW-30 if it’s going
to be
0°F
(-
18
”
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.
;
,
?.
”;“-’;
:.
*.
1
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@
~il
meets
all the requiEsn18
f~g
your vehicle.
Engine
Oil
Additives
Don’t add anything to your oil. Your Buick 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:
0
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).
Most trips
are
through dusty areas.
0
You frequently tow a trailer or use a carrier on top
of
0
The vehicle is used for delivery service, police, taxi
your vehicle.
or other commercial application.
6-12
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