Engine Code: 6G72 (SOHC or MIVEC DOHC depending on trim); Displacement: 2972cc; Bore x Stroke: 91.1 x 76.0 mm; Compression Ratio: 9.5:1 (SOHC), 10.0:1 (MIVEC); Fuel Type: Unleaded Gasoline; Horsepower: 197 hp @ 5500 rpm (SOHC), 210 hp @ 5500 rpm (MIVEC); Torque: 205 lb-ft @ 4000 rpm (SOHC), 207 lb-ft @ 4000 rpm (MIVEC).
Performance
0-60 Mph Acceleration:
Varies by engine and transmission, typically 7.0-9.0 seconds.
Fuel System
Fuel Delivery:
Electronic Fuel Injection (EFI), sequential port injection.
Fuel Type:
Unleaded gasoline, Octane Rating: 87 minimum (91 recommended for optimal performance in V6).
🔧 Transmission
Standard Transmission
4-Speed Automatic:
Standard on base models (e.g., GS) and often available on GT.
Optional Transmission
5-Speed Manual:
Available on GS and GT models, particularly common on GT models for performance enthusiasts.
Features
Sportronic Mode:
Available on automatic transmissions, allowing manual selection of gears.
📐 Dimensions
Exterior
Length:
Approximately 175.0 inches
Width:
Approximately 70.1 inches
Height:
Approximately 53.0 inches
Wheelbase:
Approximately 101.4 inches
Weights
Curb Weight:
Approximately 3000-3300 lbs, depending on engine and trim.
🛡️ Safety Features
Ratings
NHTSA Front Impact:
4-star driver, 4-star passenger (for 2006 model).
IIHS Side Impact:
Acceptable (for 2006 model, variations may exist based on specific testing).
Active Features
ABS:
Standard Anti-lock Braking System.
Traction Control:
Available on some models, especially V6.
Passive Features
Airbags:
Driver and front passenger airbags, side curtain airbags (available on some trims).
Seat Belts:
Front pretensioner seatbelts.
💡 Technology Features
Infotainment
Audio System:
Factory AM/FM/CD player, with optional premium audio systems and subwoofer. Aux input less common on this model.
Navigation:
Optional factory navigation system available on higher trims.
Driver Assistance
Cruise Control:
Standard cruise control system.
Stability Control:
Not widely available on this generation; often limited to traction control.
Connectivity
Bluetooth:
Generally not available from the factory; aftermarket solutions are common.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Every 5,000 - 7,500 miles or 6-12 months, whichever comes first, depending on driving conditions and oil type.
Engine Oil Filter Replacement:
Recommended at every oil change.
Spark Plug Replacement:
Approximately 60,000 - 100,000 miles (depending on plug type; iridium recommended).
Timing Belt Replacement:
For 2.4L (4G69): No timing belt, uses a timing chain. For 3.0L V6 (6G72): Timing belt replacement recommended every 60,000 - 90,000 miles or 7 years, whichever comes first. Crucial for preventing catastrophic engine damage.
Fluid Specifications
Engine Oil:
SAE 5W-30 API SM (or equivalent) is recommended for both engines. Check owner's manual for specific capacity (e.g., ~4.5 qts for 2.4L, ~4.8 qts for 3.0L V6).
Coolant:
Mitsubishi DiaQueen Super Long Life Coolant (Green) or equivalent phosphate-based ethylene glycol coolant. Capacity: ~7.0-8.0 qts.
Transmission Fluid Atf:
For Automatic Transmission: Mitsubishi DiaQueen ATF-SP III or equivalent. Capacity: ~3.0 qts for change, ~7.8 qts for overhaul.
Manual Transmission Fluid:
API GL-4, SAE 75W-90 synthetic gear oil. Capacity: ~2.0 qts.
Power Steering Fluid:
Dexron III ATF or equivalent. Capacity: ~1.0-1.5 qts.
Brake Fluid:
DOT 3 or DOT 4. Capacity: ~1.5-2.0 qts.
Known Issues
Engine Mounts:
Can degrade over time, leading to increased vibration and noise.
V6 Timing Belt Failure:
Critical to adhere to replacement schedule to avoid severe engine damage due to interference design.
Automatic Transmission Slipping:
Fluid changes and proper maintenance are important. Some units may develop issues with valve bodies or solenoids.
ABS Sensor Failure:
Wheel speed sensors can fail, triggering ABS warning lights.
📚 Vehicle History
Brand Heritage
Mitsubishi Motors Sporty Image:
Mitsubishi has a long history of performance-oriented vehicles, including rally success (Lancer Evolution) and iconic sports cars like the 3000GT and the original Eclipse.
Model Evolution
Eclipse Lineage:
The Eclipse nameplate has been synonymous with sporty styling and performance since its introduction in 1989 (as a joint venture with Chrysler for the first generation). The 2006 model represents the final year of the third generation, which saw a styling evolution and platform changes.
Production
Manufacturing Location:
Normal, Illinois, USA (for North American market models).
🏆 Awards & Recognition
Recognitions
Ward Auto Worlds 10 Best Engines:
The 3.0L V6 (6G72) engine, particularly MIVEC versions, has been recognized in past years for its performance and refinement.