2023 Subaru Crosstrek Oil Capacity & Filter Guide

The 2023 Subaru Crosstrek takes either 4.4 quarts or 4.7 quarts of engine oil, depending on whether it is equipped with the 2.0L or 2.5L engine. As an ASE-certified master technician, I always emphasize that having the exact oil capacity, correct viscosity, and right filter is crucial for the longevity of your Subaru's horizontally opposed "boxer" engine.

Below, you will find a comprehensive guide to the oil specifications, capacities, filter cross-references, and change procedures for the 2023 Subaru Crosstrek.

Quick answer

If you are heading to the parts store right now, here is exactly what you need for a standard oil change on your 2023 Crosstrek:

• Oil Capacity: 4.4 quarts (2.0L engine) or 4.7 quarts (2.5L engine), including the filter.
• Recommended Weight / Viscosity: 0W-20
• Oil Specification: API SP / ILSAC GF-6A full synthetic
• OEM Oil Filter: Subaru Part # 15208AA15A
• Popular Aftermarket Filters: Fram XG7317 (Ultra Synthetic), Wix 51365, Mobil 1 M1-110A

Capacity by engine option

For the 2023 model year, Subaru offered the Crosstrek with two different naturally aspirated four-cylinder engines, plus a plug-in hybrid variant (which uses the 2.0L engine base). Here is the breakdown:

Note: Always verify your final oil level using the dipstick after starting the engine, letting it run for a few moments, and turning it off to let the oil settle.

Oil change interval

Subaru's recommended service intervals for the 2023 Crosstrek depend heavily on how and where you drive.

• Normal Duty: Every 6,000 miles or 6 months (whichever comes first). This applies to mostly highway driving in moderate climates without excessive idling or heavy payloads.
• Severe Duty: Every 3,000 miles or 3 months. You fall into this category if you frequently drive in stop-and-go traffic, idle extensively, drive on dusty/muddy roads, routinely drive in freezing temperatures, or regularly take trips under 5 miles.

Because the 0W-20 oil is very thin, adhering to the 6,000-mile absolute maximum is critical. Going beyond this can result in premature timing chain wear or variable valve timing (AVCS) issues.

Drain plug torque

• Drain Plug Torque: 31 ft-lbs (41.7 Nm)
• Socket Size: 14mm

Crucial Note: You must replace the crush washer every single time you remove the drain plug. The Subaru FB engine oil pan requires a 16mm crush washer (Subaru Part # 803916010). Failing to replace this washer is the number one cause of post-oil-change leaks on these vehicles. Install the flat side of the washer against the drain plug head, and the crushable rounded side against the oil pan.

How to change the oil

Subaru makes routine maintenance highly accessible. Thanks to the top-mount oil filter, this is one of the easiest vehicles to service.

1. Warm up the vehicle: Run the engine for a few minutes to warm the oil, then shut it off. Ensure you are parked on a level surface.
2. Remove the oil cap and filter: Open the hood, loosen the oil filler cap, and use an oil filter wrench or cup to unscrew the top-mounted oil filter. Have a rag handy to catch any minor drips.
3. Drain the oil: Safely raise the front of the vehicle if needed. Locate the 14mm drain plug on the oil pan. Place your catch pan underneath and remove the plug.
4. Install the new drain plug and washer: Once the oil slows to a drip, install a new 16mm crush washer onto the drain plug. Thread it in by hand, then torque it to 31 ft-lbs.
5. Install the new filter: Apply a thin layer of fresh oil to the rubber gasket of the new oil filter. Thread it onto the top-mount housing by hand until the gasket makes contact, then tighten it another 3/4 of a turn.
6. Refill and check: Pour the correct capacity of 0W-20 full synthetic oil (4.4 or 4.7 quarts) into the filler neck. Replace the cap.
7. Run and verify: Start the engine and look for any leaks around the filter or drain plug. Turn off the engine, wait 5 minutes, and check the dipstick to ensure the oil is at the full mark.

Common issues / tips

For the 2023 Crosstrek's FB-series engines, oil consumption is something to be aware of. While drastic improvements have been made compared to earlier generations, ultra-thin 0W-20 oil can still slip past the piston rings on high-revving boxer engines. Get into the habit of checking your dipstick every other time you fill up for gas.

Additionally, because the oil filter sits right on top of the engine block in a metal "cup," be sure to wipe out any old oil or debris from that housing before screwing on the new filter. Leaving grit in the cup can damage the new filter's seal.

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