General Information: Outback: Engine
| Model | 2.5L SOHC non-turbo | 3.6 L 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 | |
| Valve arrangement | Overhead camshaft | ||
| Bore x stroke | mm (in) | 99.5 x 79.0 (3.917 x 3.110) | 92.0 x 91.0 (3.622 x 3.583) |
| Displacement | cm3 (cu in) | 2, 457 (149.9) | 3, 630 (221.4) |
| Compression ratio | 10.0 | 10.5 | |
| Ignition order | 1 - 3 - 2 - 4 | 1 - 6 - 3 - 2 - 5 - 4 | |
| Idle speed at Park or Neutral position | RPM | 650 (MT) 675 (CVT) |
700 |
| Maximum output | kW (HP)/rpm | 127 (170)/5, 600 | 191 (256)/6, 000 |
| Maximum torque | N.m (kgf-m, ft-lb)/rpm | 230 (23.5, 170)/4, 000 | 334 (34.1, 247)/4, 400 |