Market Position:
The Mitsubishi 3000GT (also known as GTO in Japan) was Mitsubishi's flagship sports coupe, designed to compete with established European and Japanese performance cars. It offered advanced technology and performance for its era.
Competitors:
Toyota Supra, Nissan 300ZX, Mazda RX-7, Porsche 944/968, Chevrolet Corvette.
Key Features:
Available twin-turbocharged V6 engine, all-wheel drive (AWD), active aerodynamics (rear spoiler, front air dam), four-wheel steering (4WS), advanced suspension systems, luxurious interior, powerful braking.
Design Philosophy:
A grand tourer with sports car performance, emphasizing advanced technology and a sophisticated driving experience.
Powertrain:
Engine mechanical, fuel system, ignition system, exhaust system, engine management, transmission (manual & automatic), drivetrain (FWD & AWD)
Chassis:
Suspension (front & rear), steering system, brake system (ABS included), wheels & tires
Electrical:
Wiring diagrams, lighting, instruments, audio system, power windows, power seats, climate control, diagnostic connectors, ECU
Body And Trim:
Exterior body panels, interior trim, doors, windows, seats, bumpers, spoilers, roof panels
Maintenance:
Scheduled maintenance, oil changes, filter replacements, tune-ups, fluid checks and changes
Repair:
Engine overhaul, transmission rebuild, brake caliper replacement, suspension component repair, electrical component diagnosis and replacement
Troubleshooting:
Diagnostic procedures, fault code interpretation, symptom-based troubleshooting guides
Specifications And Tolerances:
All mechanical and electrical specifications, torques, clearances, and wear limits
Depth Of Coverage:
Comprehensive, covering everything from basic maintenance to full engine and transmission overhauls, including detailed electrical schematics and diagnostic procedures.
Engine Name:
6G72 DOHC V6 (Naturally Aspirated & Twin-Turbocharged)
Engine Displacement:
3.0 Liters (2972cc)
Bore X Stroke:
86.0 mm x 86.0 mm
Compression Ratio:
8.0:1 (Twin-Turbo), 9.4:1 (NA)
Horsepower Twin Turbo:
300 hp @ 6000 rpm (US Spec)
Torque Twin Turbo:
307 lb-ft @ 4500 rpm (US Spec)
Horsepower Naturally Aspirated:
222 hp @ 6000 rpm (US Spec)
Torque Naturally Aspirated:
200 lb-ft @ 4500 rpm (US Spec)
Fuel Delivery:
Electronic Fuel Injection (EFI) with twin injectors per cylinder in Twin-Turbo models.
Fuel Type:
Unleaded Premium Gasoline (91 octane or higher recommended)
ECU:
Engine Control Unit (ECU) with diagnostic capabilities.
Timing:
Electronic Ignition System with Distributor.
Standard Transmission:
5-Speed Manual Transmission (Getrag for AWD models)
Optional Transmission:
4-Speed Automatic Transmission (INVECS-II for AWD models)
Transmission Features:
All-Wheel Drive (AWD) with Active Transfer Case, Viscous Coupling Center Differential, and Active Yaw Control (AYC) on some later AWD models.
Clutch Type:
Hydraulically actuated single dry plate clutch.
Length:
Approx. 4,515 mm (177.8 in)
Width:
Approx. 1,840 mm (72.4 in)
Height:
Approx. 1,250 mm (49.2 in)
Wheelbase:
Approx. 2,450 mm (96.5 in)
Curb Weight:
Approx. 1,570 kg (3461 lbs) for Twin-Turbo AWD, 1,450 kg (3197 lbs) for NA FWD.
Seating Capacity:
2+2 Seating
Cargo Volume:
Limited due to sporty design and AWD components.
NHTSA Rating:
Not extensively rated by modern standards, but featured robust construction for its era.
ABS:
Standard Anti-lock Braking System (ABS) on all models.
Aws:
Optional Active Four-Wheel Steering (AWS) available on select models.
Ayc:
Active Yaw Control (AYC) available on some later AWD models for enhanced cornering stability.
Airbags:
Driver and passenger airbags (standard from mid-90s).
Seatbelts:
Three-point seatbelts with pretensioners.
Body Structure:
Reinforced safety cage and crumple zones.
Infotainment Features:
Early models featured premium audio systems (e.g., Bose), cassette players, and analog climate controls. Later models may have offered CD players and more integrated HVAC systems.
Driver Assistance Features:
Active Aerodynamics, Active Four-Wheel Steering (AWS), Active Yaw Control (AYC), Electronic Control Suspension (ECS) on some models.
Connectivity Features:
Limited by era; primarily focused on vehicle systems and diagnostics.
Oil Change Interval:
Every 3,750 - 5,000 miles or 6 months, whichever comes first (refer to manual for specific conditions).
Timing Belt Replacement:
Every 60,000 miles or 5 years (critical for interference engines).
Engine Oil Type:
API SG or SH, SAE 10W-30 or 10W-40 (check manual for specific viscosity based on temperature).
Coolant Type:
Mitsubishi Diaqueen Super Long Life Coolant (or equivalent ethylene glycol-based coolant).
Transmission Fluid Manual:
API GL-4, SAE 75W-90 Gear Oil (for Getrag transaxle).
Transmission Fluid Automatic:
Mitsubishi Diaqueen SP III ATF (or equivalent Dexron-III/Mercon equivalent).
Brake Fluid:
DOT 3 or DOT 4.
Common Issues:
Active aero system failures (motors, actuators), ECS suspension issues (if equipped), exhaust manifold cracks (especially on turbo models), oil leaks, some transmission synchro wear, ABS sensor failures, fuel pump failures.
Timing Belt Kit Part Number Example:
MD182214 (Timing Belt), MD153477 (Tensioner), MD093094 (Idler Pulley) - Verify with OEM or reputable aftermarket supplier.
Brand Heritage:
Mitsubishi, a global automotive manufacturer with a history of innovation in performance and technology, including rallying and motorsports.
Model Evolution:
The 3000GT was developed to showcase Mitsubishi's engineering prowess, aiming to compete at the highest level of the sports car market. It underwent minor styling and mechanical updates throughout its first generation.
Production Years:
1990-1999 (First Generation: 1990-1996 in most markets)
Production Locations:
Japan (Mizushima Plant)
