2011 Cadillac STS Oil Type & Capacity: 5W-30 (6.0 quarts)
The 2011 Cadillac STS takes 5W-30 motor oil — 6.0 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-30 — 6.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| AWD | API - SAE 5W-30 | 6.00 QTS. | — | 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. |
| RWD | API - SAE 5W-30 | 6.00 QTS. | — | 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. |
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More factory specs & repair guides for your STS
🛞 2011 Cadillac STS Tire Size & Pressure →🌧️ 2011 Cadillac STS Wiper Blade Sizes →💡 2011 Cadillac STS Light Bulb Sizes →📖 2011 Cadillac STS Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
11.4 quarts (10.78 L) — 50/50 mixture of DEX-COOL and clean drinkable water. All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck the fluid level after filling.
Frequently asked questions
What type of oil does a 2011 Cadillac STS take?
The 2011 Cadillac STS takes 5W-30 motor oil (API - SAE 5W-30), per the factory service manual.
What is the oil capacity of a 2011 Cadillac STS?
The 2011 Cadillac STS oil capacity is 6.0 quarts with a filter change.
How often should I change the oil in my 2011 Cadillac STS?
Most 2011 Cadillac STS owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — Cadillac recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 2011 Cadillac STS?
Yes. 5W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2011 Cadillac STS. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.