2024 Subaru Crosstrek — Oil Capacity & Filter

The 2024 Subaru Crosstrek takes exactly 4.4 quarts (4.2 liters) of 0W-20 engine oil when performing a standard oil change with a filter replacement. As an ASE-certified master technician, I regularly service these incredibly popular, capable crossovers. Because the completely redesigned 2024 model carries over Subaru's proven FB-series Boxer engines, the oil change procedure remains one of the most DIY-friendly in the automotive industry.

Here is everything you need to know about servicing the engine oil on your 2024 Subaru Crosstrek.

Quick answer

• Oil Capacity: 4.4 quarts (4.2 L) with oil filter change.
• Recommended Weight: 0W-20 synthetic oil.
• Oil Specification: API SP or ILSAC GF-6A.
• OEM Oil Filter: Subaru part # 15208AA15A (or 15208AA20A).
• Aftermarket Filters: Fram XG7317, Wix 51334, or Mobil 1 M1-110A.

Capacity by engine option

For the 2024 model year, Subaru offers the Crosstrek with two different naturally aspirated flat-four engines. Both share the exact same engine oil capacity and viscosity requirements.

Note: Always double-check your dipstick after running the engine for a few minutes. 4.4 quarts is the initial fill volume, but you may need a slight top-off depending on how thoroughly the old oil drained.

Oil change interval

Subaru's recommended service schedule is strictly time- or mileage-based, depending on your driving habits. The Crosstrek does not have a dynamic oil life monitor that analyzes oil degradation.

• Normal Duty: 6,000 miles or 6 months (whichever comes first).
• Severe Duty: 3,000 miles or 3 months (whichever comes first).

Severe duty applies if you frequently drive on dusty/dirt roads (like many Wilderness trim owners do), take short trips under 5 miles in freezing temperatures, idle extensively, or regularly tow a trailer.

Drain plug torque

• Drain Plug Torque: 31 ft-lbs (41.7 Nm).
• Crush Washer: Subaru part # 803916010 (16mm).

Important: You must replace the metal crush washer every single time you remove the drain plug. Subaru crush washers are notorious for leaking if reused. Make sure the flat side of the new washer faces the oil pan, and the rounded (crushable) side faces the bolt head.

How to change the oil

The Crosstrek is a dream to work on thanks to its high ground clearance and top-mounted oil filter.

1. Warm up the engine: Run the car for a few minutes to get the oil warm (but not scalding hot) so it drains quickly.
2. Access the drain plug: Locate the 14mm drain plug on the bottom of the oil pan.
3. Drain the oil: Remove the plug and let the oil drain completely into a catch pan.
4. Replace the filter: While the oil is draining, open the hood and unscrew the top-mounted oil filter. Lubricate the O-ring on the new filter with a dab of fresh oil, and spin it on hand-tight (about 3/4 to 1 full turn after the gasket makes contact).
5. Reinstall drain plug: Put a new crush washer on the drain plug, thread it in by hand, and torque it to 31 ft-lbs.
6. Refill the engine: Pour 4.4 quarts of 0W-20 synthetic oil into the filler neck.
7. Test and verify: Start the engine and let it run for 30 seconds to fill the new filter. Turn it off, wait two minutes, and check the dipstick to ensure the level is at the top dot. Check for leaks around the filter and drain plug.

Common issues / tips

• Top-side oil extractor: Because the oil filter is on top of the engine, the 2024 Crosstrek is a perfect candidate for a vacuum oil extractor. You can suck the oil out through the dipstick tube and change the filter without ever crawling under the car.
• Fumoto Valve: If you prefer draining from the bottom, many Subaru owners install a Fumoto drain valve (F108 or F108N). It replaces the standard drain plug and allows you to drain the oil with a flip of a lever—no tools or crush washers required for future changes.
• Do not overtighten the filter: The metal cup that surrounds the oil filter on the top of the engine is quite shallow. If you overtighten the filter with a wrench, getting it off during your next service can be incredibly frustrating. Always install it hand-tight.
• Verify API SP: Direct-injection engines like the ones in the 2024 Crosstrek are prone to Low-Speed Pre-Ignition (LSPI) and intake valve soot. Using API SP-rated oil (which is formulated to combat LSPI and timing chain wear) is crucial.

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