Subaru Impreza Manuals 2012 Impreza Owner's Manual | Page 403

Specifications 12-3 & Engine Engine model FB20 (2.0 L, DOHC, non-turbo) Engine type Horizontally opposed, liquid cooled 4 cylinder, 4-stroke gasoline engine Displacement cu-in (cc) 121.7 (1,995) Bore 6 Stroke in (mm) 3.31 6 3.54 (84.0 6 90.0) Compression ratio 10.5 : 1 1–3–2–4 Firing order & Fuel Fuel requirement Fuel tank capacity Unleaded gasoline with 87 AKI or higher 14.5 US gal (55 liters, 12.1 Imp gal B