Chevrolet 1999 Corvette Owner's Manual page 264

6-14
D
-
SAE 5W 30
As shown in the viscosity chart, SAE 5W
for your vehicle. However, you can use SAE
-
10W 30 if it's going to be 0
These numbers on an oil container show its viscosity,
or thickness. Do not use other viscosity oils such as
-
SAE 20W 50.
This symbol indicates that the oil has been certified by
the American Petroleum Institute (API).
You should look for this on the oil container, and use
only those oils that are identified as meeting GM
Standard 4718M and have the Starburst symbol on the
front of the oil container.
-
30 is best
_ _
-
F ( 18 C) or above.
Oils meeting these
requirements should also
have the "Starburst" symbol
on the container.
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