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 Subaru ImprezaOil Type & Capacity
OEM spec from the factory service manual for the 2.5i Premium, 4D Sedan, Automatic variant.
Quick Answer
Oil Type
ILSAC GF-4, API - SM or SL, SAE 5W-30
Capacity (w/ Filter)
4.20 QTS.
3.97 L
Variant
2.5i Premium, 4D Sedan, Automatic
Note: Engine Oil viscosity (thickness) affects fuel economy. Oils of lower viscosity provide better fuel economy. However, in hot weather, oil of higher viscosity is required to properly lubricate the engine. API SM or SL SAE 30, 40, 10W-50, 20W-40, 20W-50.
You may use a synthetic motor oil if it displays the API Certification Seal, and it is the proper weight.
Source: Factory service manual — 2011 Subaru Impreza 2.5i Premium, 4D Sedan, Automatic. View full manual section →
What You'll Need
Frequently Asked Questions
- What type of oil does a 2011 Subaru Impreza take?
- The 2011 Subaru Impreza requires ILSAC GF-4, API - SM or SL, SAE 5W-30. The exact spec may vary slightly by engine variant — this page shows the OEM recommendation for the 2.5i Premium, 4D Sedan, Automatic configuration.
- How much oil does a 2011 Subaru Impreza need?
- The 2011 Subaru Impreza takes 4.20 QTS. (3.97 L) of engine oil with the filter replaced.
- Can I use synthetic oil in my 2011 Subaru Impreza?
- Yes — synthetic oil that meets the ILSAC GF-4, API - SM or SL, 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 Subaru Impreza?
- Using oil that does not meet the ILSAC GF-4, API - SM or SL, SAE 5W-30 specification can reduce engine protection, increase wear, and potentially void warranty coverage. Always use oil that meets the OEM spec.