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RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS
FOR BEST FUEL
r---'--lY
AND COLD STARTING, SELECT
THE
LOWEST
SAE VISCOSITY
G . . . . " -
,I1
FOR THE EXPECTED TEMPERATURE RANGE.
HOT
WEATHER
-
"F
"C
+ l o o -
-
+ 3 8
+eo-
-
+27
+ 6 0 - - + 1 6
t 4 0 - - + 4
t 2 0 - - - 7
0 - - - 1 8
/
WOK
FOR MIS
SYMBOL
\
'
I
I
I - -
SAE 1OW-3fl
PREFERRED
above
0°F
SAE 5W-30
(-1eOc)
COLD
WEATHER
DO
NOT
USE SAE 2OW-50 OR ANY OTHER
GRADE OIL
NOT
RECOMMENDED
As
shown in the chart, if you nave the 3.8L engine, SAE
low-30 is best for your vehicle. However, you can use
SAE
5W-30 if it's going
to
be colder than 60°F (16°C)
before your next oil change. When it's very cold, you
should use
SAE
5W-30. These numbers on an oil
container show its viscosity, or thickness. Do not use
other viscosity oils, such as
SAE
20W-50.
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.
1
. I L I V C
Don't add anything to your oil. Your Buick dealer is
ready to advise if you think something should be added.
3.8L L36 (Code K) Engine
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