Subaru EJ22 Engine Specifications
The Subaru EJ22 engine is a notable member of Subaru’s EJ family of engines, known for its reliability and performance. This engine has been widely used in various Subaru models, particularly in the 1990s and early 2000s. Below is a detailed overview of its specifications.
| Specification | Details |
|---|---|
| Engine Type | Flat-4 (Boxer) |
| Displacement | 2.2 liters (2,157 cc) |
| Configuration | Horizontally opposed |
| Bore x Stroke | 94 mm x 90 mm |
| Compression Ratio | 9.5:1 |
| Power Output | 135 hp (100 kW) at 5,600 rpm |
| Torque | 142 lb-ft (192 Nm) at 4,800 rpm |
| Fuel System | Multi-port fuel injection |
| Ignition System | Distributor-less ignition system (DLIS) |
| Fuel Type | Regular unleaded gasoline |
| Cooling System | Liquid cooled |
Engine Configuration
The Subaru EJ22 engine features a unique flat-four (boxer) configuration, which is a hallmark of Subaru’s engineering. This design offers several advantages:
- Lower Center of Gravity: The horizontally opposed layout contributes to a lower center of gravity, enhancing vehicle stability and handling.
- Reduced Vibration: The opposing pistons help to cancel out vibrations, leading to a smoother operation.
- Compact Size: The flat design allows for a more compact engine bay, providing more room for other components.
The EJ22 is known for its durability and longevity, making it a popular choice among enthusiasts and everyday drivers alike. Its robust construction and efficient design have earned it a reputation for reliability.
Engine Oil Specifications
Proper maintenance of the EJ22 engine includes regular oil changes and the use of the correct engine oil. Below are the recommended oil specifications:
| Specification | Details |
|---|---|
| Oil Type | SAE 5W-30 or 10W-30 |
| Oil Capacity (with filter) | 5.1 quarts (4.8 liters) |
| Oil Filter | Subaru OEM or equivalent |
Service Intervals
Regular maintenance is crucial for the longevity and performance of the Subaru EJ22 engine. Below are the recommended service intervals for oil changes and other maintenance tasks:
Oil Change Intervals
- Every 3,000 to 5,000 miles (4,800 to 8,000 km) under normal driving conditions.
- Every 2,500 miles (4,000 km) if driving in severe conditions (e.g., extreme temperatures, towing, or heavy traffic).
Other Maintenance Tasks
- Air Filter Replacement: Every 15,000 to 30,000 miles (24,000 to 48,000 km).
- Fuel Filter Replacement: Every 30,000 miles (48,000 km).
- Spark Plug Replacement: Every 30,000 to 60,000 miles (48,000 to 96,000 km).
- Timing Belt Replacement: Every 105,000 miles (168,000 km) or as recommended by the manufacturer.
Conclusion
The Subaru EJ22 engine stands out for its unique configuration, reliable performance, and ease of maintenance. Understanding its specifications, oil requirements, and service intervals is essential for any owner or enthusiast looking to keep this engine running smoothly. With proper care, the EJ22 can provide years of dependable service, making it a favorite among Subaru fans.
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