Cadillac 2011 STS Owner's Manual page 368

Cadillac 2011 sts automobile owner's manual

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Selecting the right engine oil depends on both the

proper oil specification and viscosity grade:

Use and ask for engine oils with the dexos

certification mark. Oils meeting the requirements of your

vehicle should have the dexos

the container. This certification mark indicates that the

oil has been approved to the dexos

Your vehicle was filled at the factory with dexos

approved engine oil.

certification mark on

specification.

Use of Substitute Engine Oils if dexos

In the event that dexos

available at an oil change or for maintaining proper oil

level, you may use substitute engine oil displaying the

API Starburst symbol and of SAE 5W-30 viscosity

grade. Use of oils that do not meet the dexos

specification, however, may result in reduced

performance under certain circumstances.

is unavailable:

approved engine oil is not