Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2006 Subaru Outback i, AutomaticFACTORY OEM SERVICE PROCEDURE
General Information: Specifications: Outback: Engine
ENGINE - SPECIFICATIONS
| 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) | 99.5x79.0(3.917x3.110) | 89.2x80.0(3.512x3.150) | |
| Displacement | cm3 (cu in) | 2,457(149.9) | 3,000(183.06) | |
| Compression ratio | 10.0 | 8.2 | 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 | 130(175)/6,000 | 186 (250)/6,000 | 186 (250)/6,600 |
| Maximum torque | N.m (kgf-m, ft-lb)/rpm | 229(23.4, 16.9)/4,400 | 339 (34.5, 250)/3,600 | 297(30.3,219)74,200 |
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.