2021 Subaru WRX - Maintenance & Specs
The 2021 Subaru WRX belongs to a Subaru WRX lineup that Know Your Ride tracks across 10 model years, from 2003 to 2026. Engine options on record include the 2.0L, 2.5L, 2.0L I4 / 2.5L I4. It is configured as all-wheel drive with a manual 6-spd. The 2021 sits mid-run, with both earlier (2003) and later (2026) WRX model years also documented.
It takes 5W-30 full synthetic oil, 5.1 qt with a new filter meeting API SN Plus. Fluid specs on file include Super Long Life coolant, DOT 4 brake fluid, Subaru ATF HP transmission fluid. Know Your Ride lists 14 scheduled maintenance items for this vehicle, the earliest interval falling at 7,500 miles. Documented torque values include oil drain plug 33 ft-lb, lug nut 89 ft-lb, spark plug 18 ft-lb.
NHTSA complaints for this vehicle cluster around power train (2), power train,engine (2), visibility/wiper (2). A representative report reads: "Manual (not power) Driver seat is loose-rocking car only has 47000 miles but this hardware failure will get worse over time definitely a safety concern if bolt..." There is 1 safety recall on record; one covers: Subaru of America, Inc. (Subaru) is recalling certain 2015-2021 WRX vehicles. The backup light switch may corrode and become inoperative, which can....
EPA fuel economy is rated at 20 city / 27 highway MPG, 23 MPG combined. Estimated annual fuel cost is about $2,500.
Quick Specs
| Oil viscosity | 5W-30 |
| Oil type | Full Synthetic |
| Oil capacity (w/ filter) | 5.1 qt |
| OEM oil spec | API SN Plus |
| Oil filter | Fram XG7317 |
| EPA combined | 23 MPG |
| Tire size | 245/60R18 |
| Coolant | Super Long Life |
| NHTSA overall | 5 / 5 stars |
| Open recalls on record | 1 |
| Technical service bulletins | 99 |
Common Trouble Codes
- P0300 - Random/Multiple Cylinder Misfire Detected
- P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
- P0171 - System too Lean (Bank 1)
- P0128 - Insufficient Coolant Temperature for Stable Operation
- P0442 - Evaporative Emission Control System Leak Detected (small leak)
- P0455 - Evaporative Emission Control System Leak Detected (gross leak)
- P0700 - Transmission Control System Malfunction
- P0301 - Cylinder 1 Misfire Detected
- U0100 - Lost Communication With ECM/PCM A
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Part of the free Know Your Ride vehicle maintenance reference. Figures are sourced from EPA, NHTSA and manufacturer data and are for general reference - always confirm with your owner's manual.