2020 Subaru Outback Oil Capacity & Filter Guide

The 2020 Subaru Outback most commonly takes 4.8 quarts (4.5 liters) of 0W-20 synthetic oil for both the 2.5L and 2.4L turbocharged engines.

Quick Answer

• Oil Capacity: 4.8 US quarts (4.5 liters)
• Recommended Oil Weight: 0W-20 Synthetic
• Oil Type Specification: API SN PLUS or higher, or ILSAC GF-5 or higher. Subaru recommends Subaru Genuine Motor Oil or equivalent.
• OEM Oil Filter Part Number: 15208AA170 (for both engines)
• Aftermarket Oil Filter Cross-References:
  • Fram: PH6607
  • Wix: 57055
  • Mobil 1: M1-108A

Capacity by Engine Option

Oil Change Interval

Subaru recommends the following oil change intervals for the 2020 Outback:

• Normal Driving Conditions: Every 6,000 miles or 6 months, whichever comes first.
• Severe Driving Conditions: Every 3,000 miles or 6 months, whichever comes first.

Severe driving conditions include (but are not limited to) frequent short trips, extensive idling, dusty conditions, towing, or driving in extremely cold weather.

Drain Plug Torque

The oil drain plug for the 2020 Subaru Outback should be torqued to 30 ft-lbs (40 Nm). Always use a new crush washer with each oil change to ensure a proper seal and prevent leaks. The OEM crush washer part number is typically 803916010.

How to Change the Oil

1. Safely lift and support the front of the vehicle. Consider using ramps or jack stands along with a floor jack.
2. Locate the oil drain plug on the oil pan beneath the engine. Place a drain pan underneath.
3. Loosen and remove the drain plug with the appropriate wrench (typically a 17mm or 14mm, consult your owner's manual). Allow the old oil to drain completely.
4. Once drained, replace the drain plug with a new crush washer and tighten to 30 ft-lbs (40 Nm).
5. Locate the oil filter, typically on the top of the engine bay near the front for the 2.5L, and on the lower driver's side for the 2.4L Turbo. Place a small catch pan underneath.
6. Using an oil filter wrench, loosen and remove the old oil filter. Be prepared for some residual oil to leak out.
7. Apply a thin film of new engine oil to the rubber gasket of the new oil filter.
8. Screw on the new oil filter by hand until the gasket makes contact, then tighten an additional 3/4 to 1 full turn (or according to filter manufacturer recommendations).
9. Lower the vehicle. Locate the oil fill cap on the top of the engine.
10. Add 4.8 quarts of new 0W-20 synthetic oil.
11. Replace the oil fill cap, start the engine, and check for leaks. Allow the engine to run for a minute or two, then shut it off.
12. Wait a few minutes for the oil to settle, then check the oil level on the dipstick and top off if necessary. The oil level should be between the "low" and "full" marks.

Common Issues / Tips

• Oil Consumption: While less common than in previous generations, some 2020 Outbacks, particularly with the 2.5L engine, may exhibit minor oil consumption. Regularly check your oil level between changes.
• CVT Transmission: The 2020 Outback uses a Continuously Variable Transmission (CVT). Unlike engine oil, CVT fluid changes are generally less frequent and often require specific fluid and procedures. Consult your dealer or a Subaru specialist for CVT service.
• Turbocharger Maintenance (2.4L Turbo): If you have the 2.4L turbocharged engine, ensuring consistent oil changes with the correct full synthetic oil is even more crucial for the longevity of the turbocharger.
• Subaru-Specific Filter: While aftermarket filters are available, many Subaru enthusiasts recommend sticking with the OEM Subaru oil filter (part number 15208AA170) as it's designed specifically for the engine's oil galleries and pressure.
• Warm Engine: It's always best to change the oil when the engine is warm (but not hot) as this helps the oil drain more completely.

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