Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2011 Cadillac STSOil Type & Capacity
OEM spec from the factory service manual for the AWD variant.
Quick Answer
Oil Type
API - SAE 5W-30
Capacity (w/ Filter)
6.00 QTS.
5.67 L
Variant
AWD
Note: The engine requires engine oil approved to the dexos1 specification. Oils meeting this specification can be identified with the dexos certification mark. Look for and use only an engine oil that displays the dexos certification mark of the proper viscosity grade. SAE 5W-30 is the best viscosity grade for the vehicle. Do not use other viscosity oils such as SAE 10W-30, 10W-40, or 20W-50.
Cold Temperature Operation: In an area of extreme cold, where the temperature falls below -29Deg. C (-20Deg. F), an SAE 0W-30 oil should be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil of the appropriate viscosity grade, be sure to always select an oil that meets the required specification, dexos.
If the oil is below the cross-hatched area at the tip of the dipstick, add 1 Qt. of the recommended oil and then recheck the level.
Source: Factory service manual — 2011 Cadillac STS AWD. View full manual section →
What You'll Need
Frequently Asked Questions
- What type of oil does a 2011 Cadillac STS take?
- The 2011 Cadillac STS requires API - SAE 5W-30. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the AWD configuration.
- How much oil does a 2011 Cadillac STS need?
- The 2011 Cadillac STS takes 6.00 QTS. (5.67 L) of engine oil with the filter replaced.
- Can I use synthetic oil in my 2011 Cadillac STS?
- Yes — synthetic oil that meets the API - SAE 5W-30 specification is acceptable and often preferred for better protection and longer change intervals.
- What happens if I use the wrong oil in my 2011 Cadillac STS?
- Using oil that does not meet the API - SAE 5W-30 specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.