2015 Subaru Outback Oil Capacity & Filter Reference

The 2015 Subaru Outback with the 2.5L four-cylinder engine takes 5.1 quarts (4.8 liters) of 0W-20 synthetic oil, while the 3.6L six-cylinder engine requires 6.9 quarts (6.5 liters) of 5W-30 synthetic oil.

Quick Answer

• Oil Capacity (2.5L H4): 5.1 qts / 4.8 L
• Oil Capacity (3.6L H6): 6.9 qts / 6.5 L
• Recommended Oil Weight (2.5L H4): 0W-20
• Recommended Oil Weight (3.6L H6): 5W-30
• Oil Specification: API SN or ILSAC GF-5
• Oil Filter (OEM): 15208AA15A
• Oil Filter Cross-Reference: Fram PH7317, Wix 57055, Mobil 1 M1-110A

Capacity by Engine Option

Oil Change Interval

• Normal Duty: 6,000 miles or 6 months
• Severe Duty: 3,000 miles or 3 months (includes frequent short trips, driving in extreme temperatures, or dusty conditions)

Drain Plug Torque

The engine oil drain plug should be torqued to 31 ft-lbs (42 Nm). It is highly recommended to replace the crush washer with a new one (part number 11126AA000) at every oil change to prevent leaks.

How to Change the Oil

1. Warm up the engine to allow the oil to drain more easily.
2. Remove the 14mm drain plug and let the old oil drain into a pan.
3. Replace the oil filter. Be sure to apply a thin layer of new oil to the gasket of the new filter.
4. Reinstall the drain plug with a new crush washer and torque to 31 ft-lbs.
5. Fill the engine with the correct amount and type of oil.
6. Start the engine, let it run for a minute, then turn it off and check the oil level, topping off as necessary.

Common Issues / Tips

For this generation of Outback, it is crucial to monitor the oil level between changes, as some engines can consume oil. The 2.5L engine, in particular, was part of a class-action lawsuit for excessive oil consumption. Using the recommended 0W-20 synthetic oil is critical for the proper operation of the variable valve timing system.

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