Free repair checklist
Change Your Impreza's Oil for $24 — Here's Exactly How
The 2021 Subaru Impreza 2.0L FB20 Boxer takes the 15208AA15A filter, 4.2 qt of 0W-20 full synthetic, and a 30 lb-ft drain plug torque. This free guide covers the exact Subaru OEM specs and full procedure so you
This checklist is a practical starting point. The DIY Mechanic System gives you a clearer path to diagnose the problem, plan the job, and complete the repair.
What this checklist covers
- Exact OEM part number — Subaru 15208AA15A filter for the FB20 Boxer, confirmed fit for the 2021 Impreza
- Torque specs included — 30 lb-ft on the drain plug to keep the Boxer's underbody dry between changes
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