Most 2013 Subaru models use 0W-20 synthetic motor oil. Some models with turbocharged or larger engines may require 5W-30 or 5W-40. Always verify the exact specification in your owner’s manual or on the under-hood oil fill cap.
Oil Type by Engine Family
The 2013 lineup includes several engines; the following outlines typical viscosities by engine family. Verify for your exact model in the manual.
- 2.0L turbocharged engines (e.g., WRX): 5W-40 synthetic motor oil
- 2.0L non-turbo and 2.5L engines (most Impreza, Forester, Outback, Legacy with 2.5L): 0W-20 synthetic motor oil
- 3.6L H6 engines (e.g., some Outback/Legacy models): 5W-30 synthetic motor oil
Note: Some climates or high-mileage engines may have alternate acceptable viscosities listed by Subaru; always follow the manual.
Climate and Driving Considerations
Beyond engine type, climate and driving conditions can influence your choice. The rule of thumb is to follow the factory recommendation, and if you operate in extreme heat, cold, or heavy towing, consult the manual or a Subaru service advisor. Below are general guidelines commonly cited for 2013 Subarus.
- For everyday driving in moderate climates: 0W-20 is standard for most engines.
- In hot climates or high-load conditions, 5W-30 or 5W-40 may be recommended for turbo or high-mileage engines, if specified in your manual.
- Always use a high-quality synthetic oil that meets API SN or newer and ILSAC GF-5 or GF-6 standards, as noted by Subaru.
Concluding note: Oil viscosity and specification can vary by model and market. Check the owner’s manual or consult a Subaru dealer to confirm the exact grade for your vehicle.
Summary
For most 2013 Subarus, 0W-20 synthetic motor oil is the standard choice. Turbocharged models like the WRX typically require 5W-40, while 3.6L V6 models use 5W-30. Always confirm the exact specification from your owner’s manual, the oil filler cap, or a Subaru dealer, as requirements can vary by model, climate, and driving conditions.