compression ratio SUBARU OUTBACK 2008 4.G Owners Manual

&Engine
Engine model EJ253
(2.5-liter, SOHC, non-turbo) EJ255
(2.5-liter, DOHC, turbo) EZ30D
(3.0-liter, DOHC, non-turbo)
Engine type Horizontally opposed, liquid cooled 4 cylinder,
4 stroke gasoline engine Horizontally opposed, liquid cooled 6 cylinder,
4 stroke gasoline engine
Displacement cu-in (cc) 150 (2,457) 183 (3,000)
Bore 6Stroke in (mm) 3.92 63.11 (99.5 679.0) 3.51 63.15 (89.2 680.0)
Compression ratio 10.0 : 1 8.4 : 1 10.7 : 1
Firing order 1– 3–2 – 4 1
–6– 3–2– 5–4
& Electrical system
Battery type and capacity (5HR) 2.5-liter models
MT 55D23L (12V-48AH)
AT 75D23L (12V-52AH)
3.0-liter models 75D23L (12V-52AH)
Alternator 12V-110A
Spark plugs 2.5-liter non-turbo models
FR5AP-11 (NGK)
2.5-liter turbo models SILFR6A (NGK)
3.0-liter models ILFR6B (NGK)Specifications
12-3
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