2015 Subaru Crosstrek Oil Capacity & Filter Reference

A 2015 Subaru Crosstrek requires 5.1 quarts (4.8 liters) of 0W-20 synthetic oil. This guide provides all the necessary specifications for a complete oil change.

Quick Answer

• Oil Capacity: 5.1 quarts / 4.8 liters (with filter)
• Recommended Oil Weight: SAE 0W-20
• Oil Specification: API Resource Conserving (API SN or newer)
• Oil Filter (OEM): Subaru 15208AA15A
• Oil Filter (Fram): PH6607, TG6607
• Oil Filter (Wix): 57055
• Oil Filter (Mobil 1): M1-110A

Capacity by Engine Option

The 2015 Crosstrek was offered with one primary engine in the North American market.

Oil Change Interval

Adhering to the correct oil change interval is crucial for the longevity of the FB20 engine. Subaru outlines two service schedules based on driving conditions.

• Normal Duty: 6,000 miles or 6 months, whichever comes first. This is for typical, light-duty use.
• Severe Duty: 3,000 miles or 3 months. This schedule is recommended if your vehicle is frequently used for towing, short trips in cold weather, driving in dusty/dirty conditions, or extended idling.

Drain Plug Torque

Properly tightening the drain plug prevents leaks without stripping the threads on the oil pan.

• Torque Spec: 30.8 ft-lbs (41.8 Nm)
• Crush Washer: Always use a new 16mm ID crush washer (OEM Part #11126AA000) with every oil change to ensure a proper seal.

How to Change the Oil

Changing the oil on a 2015 Crosstrek is straightforward, especially with its top-mounted oil filter.

1. Warm up the engine for a few minutes to get the oil flowing.
2. Safely raise and support the vehicle on a level surface using jack stands.
3. Place a drain pan under the oil pan and remove the 17mm drain plug.
4. While the oil is draining, open the hood. The oil filter is on the top of the engine, passenger's side, making for an easy, clean removal.
5. Replace the old filter with a new one, making sure to apply a thin coat of new oil to the gasket.
6. Once the old oil has finished draining, clean the drain plug area and install the plug with a new crush washer, torquing it to 30.8 ft-lbs.
7. Lower the vehicle and fill the engine with 5.1 quarts of 0W-20 synthetic oil.
8. Start the engine and let it run for 30 seconds to circulate the new oil, then check for leaks.

Common Issues / Tips

• Top-Mounted Filter: Unlike most cars, the oil filter is on the top of the engine. This is a major convenience, preventing the usual mess of oil running down the side of the engine block during a filter change.
• Use Correct 0W-20 Oil: The FB20 engine uses Subaru's AVCS (Active Valve Control System) which relies on oil pressure to function. Using the specified 0W-20 viscosity is critical for proper engine operation and efficiency.
• Oil Consumption: Some early FB-series engines were known for oil consumption. While less of an issue by the 2015 model year, it is wise to check the oil level via the dipstick every other fuel stop to monitor for any potential loss.

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