Subaru EJ20/EJ25 Engine Specs
Subaru
Quick overview
Subaru EJ20/EJ25 is a 2.0-2.5L petrol engine with 150-310 HP, 196-407 Nm, 10.0:1 compression ratio. Fuel consumption: 8-12 L/100km. Typical service life: 250,000+ km with proper maintenance.
150-310
HP
2.0-2.5L
Displacement
196-407 Nm
Torque
Petrol
Fuel
Description
The Subaru EJ series represents Subaru's iconic boxer engine family. Known for their unique horizontally-opposed layout and distinctive sound, these engines powered Subaru's most famous models including the WRX and STI.
General Information
Production Years:
1989-2019
Fuel Type:
Petrol
Environmental Standards:
Euro 3/4/5/6
Fuel Consumption:
8-12 L/100km (19.6-29.4 mpg)
Power (HP):
150-310
Power (kW):
110-228
Displacement:
2.0-2.5L (122-152.6 cu.in)
Torque:
196-407 Nm (145-300 lb-ft)
Cylinder Block Alloy:
Aluminum alloy
Cylinder Head Alloy:
Aluminum alloy
Has Turbo:
Yes
Engine Layout:
Boxer-4
Aspiration Type:
Naturally Aspirated/Turbocharged
Fuel System:
Multi Point Injection
Head Type:
DOHC, 16 valves
Timing Drive:
Timing Belt
Cooling Type:
Liquid Cooled
Engine Cycle:
Otto Cycle
Cylinders Count:
4
Technical Details
Total Valves:
16
Firing Order:
1-3-2-4
Compression Ratio:
8.2-10.0:1
Hydraulic Lifters:
No
Minimum Octane:
95
Maintenance
Oil Capacity:
4.2L (4.4 qts)
Recommended Oil:
Subaru 5W-30 Synthetic
Operating Temperature:
82-100°C (180-212°F)
Service Life (km):
250,000+ km with proper maintenance (155 miles)
Timing Belt/Chain Interval:
Belt - 105,000 km or 7 years