Chevrolet 1999 Lumina Owner's Manual page 236

6-16
As shown in the chart, if you have the 3800 V6 engine,
-
SAE 10W 30 is best for your vehicle. However, you can
30 if it's going to be colder than 60 _ F
-
use SAE 5W
(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
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.
R
GM Goodwrench oil meets all the requirements for
your vehicle.
If you are in an area where the temperature falls below
_ _
- -
20 F ( 29 C), consider using either an SAE 5W
synthetic oil or an SAE 0W
easier cold starting and better protection for your engine
at extremely low temperatures.
-
50.
-
30
-
30 oil. Both will provide
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