2023 Subaru Forester Oil Capacity & Filter Spec
Working on this 2023 Subaru Forester? Run just this one job through Repairius.
No big switch. Write the estimate, text it for approval, and get paid on your phone. Keep everything else the way it is.
14-day free trial · credit card required · cancel anytime
The 2023 Subaru Forester with the 2.5L engine requires 4.4 to 4.8 quarts (4.2 to 4.5 liters) of 0W-20 synthetic oil.
Quick Answer
- Oil Capacity: 4.4 to 4.8 U.S. Quarts (4.2 to 4.5 Liters) with filter change.
- Oil Weight: 0W-20
- Oil Spec: API SP or ILSAC GF-6
- Oil Filter (OEM): Subaru 15208AA15A
- Oil Filter (Aftermarket): Fram PH7317, Wix 57055, Mobil 1 M1-110A
Capacity by Engine Option
For the 2023 model year, the Subaru Forester is available with one engine option in North America:
| Engine | Oil Capacity (with filter) |
|---|---|
| 2.5L H4 (FB25DI) | 4.4 - 4.8 quarts (4.2 - 4.5 liters) |
Oil Change Interval
- Normal Duty: 6,000 miles or 6 months.
- Severe Duty: 3,000 miles or 3 months.
Drain Plug Torque
- Drain Plug Torque: 31 ft-lbs (42 Nm)
- Crush Washer: Always use a new crush washer to prevent leaks.
How to Change the Oil
- Warm up the engine.
- Lift and support the vehicle safely.
- Remove the drain plug and drain the oil.
- Replace the oil filter.
- Install the drain plug with a new crush washer.
- Fill with 4.4 to 4.8 quarts of 0W-20 synthetic oil.
- Check for leaks.
Common Issues / Tips
- The FB25DI engine is direct-injected, making it crucial to use high-quality oil meeting the API SP or ILSAC GF-6 specification to prevent carbon buildup on the intake valves.
- The oil filter is located on the top of the engine, making it easily accessible.
- Subaru's "normal" service interval is shorter than many other manufacturers. To maintain your warranty and ensure long engine life, it's best to stick to the 6,000-mile/6-month interval.
Need an oil change? Find a trusted shop on Repairius.
More specs for the 2023 Subaru Forester
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2023 Subaru Forester Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
Browse by make
Running an auto or diesel repair shop?
Compare Repairius to the shop software you're paying for
$99.99/month (first location included), unlimited users, 14-day free trial.
Values can vary by engine, trim and build date; check your VIN-specific service information. Updated 2026-10-24.