Subaru Impreza Manuals 2011 Impreza Owner's Manual | Page 411

Specifications

12-3

& Engine
Engine model

EJ253 (2.5 L, SOHC, non-turbo)

Engine type

Horizontally opposed, liquid cooled 4 cylinder, 4-stroke gasoline engine

Displacement cc (cu-in)

2,457 (149.94)

Bore 6 Stroke in (mm)

3.92 6 3.11 (99.5 6 79.0)

Compression ratio

10.0 : 1
1–3–2–4

Firing order

& Electrical system
Battery type and capacity (5HR)

Spark plugs

12V-48AH (55D23L)

AT
Alternator

MT

12V-52AH (65D23L)
12V-90A
FR5AP-11 (NGK)

AT: Automatic transmission
MT: Manual transmission

– CONTINUED –