2008 Subaru Outback Base, StandardFACTORY OEM SERVICE PROCEDURE

General Information: Specifications: Outback: Engine

ENGINE SPECIFICATION

Model 2.5 L SOHC 2.5 L DOHC turbo 3.0 L DOHC
Engine type Horizontally opposed, liquid cooled, 4-cylinder, 4-stroke gasoline engine Horizontally opposed, liquid cooled, 6-cylinder, 4-stroke gasoline engine
Valve arrangement Overhead camshaft
Bore x stroke mm (in) 99.5 x 79.0 (3.917 x 3.110) 89.2 x 80.0 (3.512 x 3.150)
Displacement cm3 (cu in) 2,457 (149.9) 3,000 (183.06)
Compression ratio 10.0 8.4 10.7
Ignition order 1-3-2-4 1-6-3-2-5-4
Idle speed at Park or Neutral position rpm 650 (MT)
700 (AT)		 750 650
Maximum output kW (HP)/rpm 125 (170)/6,000 184 (243)/6,000 185 (245)/6,600
Maximum torque N.m (kgf-m, ft-lb)/rpm 230 (23.5, 170)/4,400 327 (33.3, 241) 73,600 291 (29.7,215)/4,200
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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