Pontiac 2009 Solstice Owner's Manual page 220

For Vehicles With the 2.4L L4 Engine
Look for three things:
•
GM6094M
Use only an oil that meets GM Standard GM6094M.
•
SAE 5W-30
SAE 5W-30 is best for the vehicle. These numbers
on an oil container show its viscosity, or thickness.
Do not use other viscosity oils such as SAE 20W-50.
5-18
•
American Petroleum Institute (API) starburst symbol
Notice: Use only engine oil identified as meeting
GM Standard GM6094M and showing the American
Petroleum Institute Certified For Gasoline Engines
starburst symbol. Failure to use the recommended
oil can result in engine damage not covered by
the vehicle warranty.
Oils meeting these
requirements should have
the starburst symbol on
the container. This symbol
indicates that the oil
has been certified by the
American Petroleum
Institute (API).