🏷️ Basic Information Identification Make: SUBARU Model: H4SO Engine Product Category: Automotive Engine Repair Manual Application Associated Vehicles: Subaru Outback, Subaru Legacy Manufacturer Manufacturer: SUBARU CORPORATION 📋 Manual Details Documentation Manual Type: Workshop Repair Manual Language: English Content Focus: Repair, Maintenance, Diagnostics 🔧 Maintenance Lubrication Recommended Oil Type: Refer to specific vehicle model year recommendations (e.g., SAE 0W-20) Oil Capacity: Refer to specific vehicle model year recommendations (e.g., 5.1 US quarts / 4.8 Liters) General Maintenance Service Tasks Covered: Engine assembly/disassembly, fuel system, ignition system, cooling system, lubrication system, exhaust system, emissions control, engine management systems. 📄 Specifications Engine Device Type: Internal Combustion Engine Intended Use: Automotive Propulsion Cylinder Arrangement: Horizontally Opposed Number Of Cylinders: 4 📄 Performance Specs Engine Performance Engine Type: H4SO (Horizontally Opposed 4-cylinder, Naturally Aspirated) Displacement: 2.5 Liters Fuel Type: Unleaded Gasoline Aspiration: Naturally Aspirated