🏷️ Basic Information Identification Make: Mitsubishi Model: 3000GT Model Variant: GTO (Domestic Market) Year: 1991 Codes Chassis Code: Z16A 👋 Introduction Market Position Positioning: Flagship Japanese Sports Grand Tourer, competing with European performance coupes of the era. Competitive Analysis Competitors: Nissan 300ZX (Z32), Toyota Supra (MKIV), Mazda RX-7 (FC/FD), Chevrolet Corvette (C4), Dodge Stealth (R/T Twin Turbo). Key Features Engineering Highlight: Advanced all-wheel drive (AWD), All-wheel steering (AWS/4WS), Electronic Controlled Suspension (ECS), Twin-Turbocharged V6 engine. Marketing Perception Perception: Technologically advanced, performance-oriented, luxurious GT capable of both spirited driving and comfortable long-distance cruising. 📋 Manual Details Coverage Areas Coverage Scope: Complete Professional Technical Service and Repair Page Count Estimated Page Count: 1000+ Manual Type Type: Factory Service Manual Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine (6G72 V6), Transmission (Manual & Automatic), Drivetrain (AWD/4WS) Chassis: Suspension (ECS), Steering (4WS), Brakes (ABS, AWD) Electrical: Wiring Diagrams, ECU, Sensors, Lighting, Audio, Power Accessories Body And Interior: Body panels, Trim, Climate Control, Safety Restraints Procedures Included Maintenance: Scheduled Maintenance, Fluid Changes, Filter Replacements, Tune-ups Diagnostics: Troubleshooting Charts, DTC (Diagnostic Trouble Code) Procedures, Component Testing Repair And Overhaul: Engine Rebuild, Transmission Overhaul, Suspension Component Replacement, Brake System Service, Electrical Component Repair Specifications And Data: Torque Specifications, Clearances, Alignment Data, Electrical Resistance Values Technical Depth Depth: Comprehensive: From basic fluid checks to complete engine and transmission rebuilds, including advanced diagnostics and electrical system tracing. 📊 Manual Specifications File Format Quality: High-resolution, searchable PDF, printable pages. Print Quality Print Readability: Designed for clear reading and easy navigation of technical diagrams and text. Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: 6G72 Configuration: V6, SOHC (later DOHC Twin-Turbo variants exist, but this manual covers the 1991 model which typically featured DOHC TT for higher trims) Displacement: 3.0 Liters (2972 cc) Performance Horsepower: Approx. 300 hp (Twin-Turbo model) Torque: Approx. 300 lb-ft (Twin-Turbo model) Fuel System Induction: Twin-Turbocharged, Electronic Fuel Injection (EFI) Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Cooling System Coolant Capacity: Approx. 8.5 Liters Ignition System Type: Distributorless Ignition System (DIS) on Twin-Turbo models, Distributor ignition on NA models. 🔧 Transmission Standard Type: 5-speed Manual (G5M-R for AWD models) Optional Type: 4-speed Automatic (with Sport Mode) Features AWD Transfer Case: Active electronically controlled transfer case (for AWD models) Transmission Fluid Manual Fluid Spec: API GL-3 or GL-4 Gear Oil (e.g., Mitsubishi DiaQueen LSD Gear Oil) Automatic Fluid Spec: DiaQueen ATF-SP II M or equivalent DEXRON III/MERCON compatible 📐 Dimensions Exterior Length: 4620 mm (181.9 in) Width: 1840 mm (72.4 in) Height: 1260 mm (49.6 in) Wheelbase: 2500 mm (98.4 in) Weights Curb Weight: Approx. 1600-1700 kg (3527-3748 lbs) depending on configuration Wheels And Tires Wheel Bolt Pattern: 5x114.3 mm Standard Tire Size: 225/55R16 (Standard), 245/45ZR17 (Optional/Twin-Turbo) 🛡️ Safety Features Ratings Crash Test Data: Limited published official ratings for this era, but designed with crumple zones and reinforced passenger cage. Active Features Traction Control: Available on some models (e.g., ECS/AWD system can contribute to traction management). ABS: Standard on Twin-Turbo, available on some NA models. Passive Features Airbags: Driver's side airbag standard. Seat Belts: 3-point front seat belts with pretensioners, 2-point rear seat belts. 💡 Technology Features Infotainment Audio System: Premium AM/FM Stereo with Cassette Player, often with a separate amplifier. Driver Assistance Active Aero: Adjustable front and rear spoilers (on some trims) for optimized aerodynamics at speed. Ecs: Electronic Controlled Suspension allowing driver selection of ride comfort levels. Aws 4Ws: Active All-Wheel Steering system for improved maneuverability at low speeds and stability at high speeds. Connectivity Diagnostics: OBD-I (On-Board Diagnostics) system with specific Mitsubishi diagnostic connectors and procedures covered in the manual. 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000 miles or 6 months, whichever comes first. Timing Belt Replacement: Every 60,000 miles or 5 years (CRITICAL for DOHC Twin-Turbo engine). Fluid Specifications Engine Oil Spec: SAE 10W-30 or 10W-40 (API SG/SH or higher) Engine Oil Capacity: Approx. 4.5 Liters (with filter) Brake Fluid Spec: DOT 3 or DOT 4 Power Steering Fluid Spec: Mitsubishi Power Steering Fluid or Dexron II/III ATF Known Issues Timing Belt: Failure to replace the timing belt on schedule can lead to catastrophic engine damage (interference engine). Turbochargers: Potential for bearing wear, seal leaks, or wastegate issues if not properly maintained or abused. Ecs System: Aging ECS components (shocks, sensors, pumps) can fail, leading to a stiff ride or warning lights. Fuel Injectors: Clogging or failure of fuel injectors, especially on early models with twin-turbo setup. 📚 Vehicle History Brand Heritage Brand History: Mitsubishi has a long history in motorsport and performance vehicle development, evident in the engineering of the 3000GT. Model Evolution Generation: First Generation (1990-1993). Design Philosophy: Developed as a technological showcase, aiming to compete with European...