2010 Chevrolet Cobalt Owner's Manual - Page 291
2010 Chevrolet Cobalt Manual
Page 291 highlights
What Kind of Engine Oil to Use For Vehicles With the 2.2L L4 Engine Look for three things: . 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. . American Petroleum Institute (API) starburst symbol 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). . GM6094M Use only an oil that meets GM Standard GM6094M. 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. 6-19
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