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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.
;
,
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" ; " - ' ;
:.
* .
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@ ~ i l 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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