🏷️ Basic Information Identification Make: Infiniti Model: M30 Model Code: F31 Series Production Years: 1990-1992 👋 Introduction Market Position Target Audience: Do-it-yourselfer as well as the experienced mechanic. Value Proposition: Inexpensive way to keep your vehicle working properly, saving money on repairs. Competitive Analysis Uniqueness: Complete and intact, no missing/corrupt pages/sections, high level of detail with hundreds of photos and illustrations. Key Features Delivery Method: Instant Download Payment Options: All Major Credit/Debit Cards and PayPal. 📋 Manual Details Coverage Areas Vehicle Models Covered: Infiniti M30 (F31 Series) for model years 1990, 1991, 1992 Page Count Total Pages: >3000 Manual Type Type: Complete Service Repair Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Included Engine Lubrication Cooling: Included Engine Control System: Included Fuel Exhaust Systems: Included Clutch: Included Manual Transaxle: Included Automatic Transaxle: Included Front Axle Suspension: Included Rear Axle Suspension: Included Brake System: Included Steering System: Included Restraint System: Included Body Trim: Included Heater Air Conditioner: Included Electrical System: Included General Information: Included Maintenance: Included Procedures Included Repair Procedures: Detailed step-by-step instructions for all repair procedures. Maintenance Procedures: Comprehensive maintenance procedures and schedules. Rebuild Procedures: Covered for major mechanical components. Refurbishment Restoration: Procedures tailored for refurbishment and restoration. Diagnostic Procedures: All diagnostic procedures included. Technical Depth Depth Of Information: Complete, covering every single detail on the car, from basic maintenance to full rebuilds. Illustrations Diagrams: Hundreds of detailed illustrations and diagrams. Wiring Schematics: Included Specifications: Detailed specifications provided throughout. 📊 Manual Specifications File Format File Type: PDF Compatibility: All versions of Windows & Mac, Linux OS, iPhone, iPad, Android devices. Requirements: Adobe PDF Reader & WinZip Print Quality Printability: Printable from digital file. Searchability: Searchable text for easy navigation. Bookmarking: Bookmarked for quick access to sections. Binding Type Binding: Not applicable (Digital Download) Paper Type Paper Quality: Not applicable (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: VG30DE DOHC V6 Displacement: 3.0 Liters (2960 cc) Performance Horsepower Approx: 160-180 hp (depending on specific market/configuration) Torque Approx: 170-185 lb-ft (depending on specific market/configuration) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) 🔧 Transmission Standard Transmission Type Available: 5-Speed Manual Transaxle; 4-Speed Automatic Transaxle Features Transmission Cooling: Automatic transmission includes external cooler. 📐 Dimensions Exterior Body Style: 2-Door Coupe Weights Curb Weight Approx: 3300-3500 lbs (depending on configuration) 🛡️ Safety Features Passive Features Airbags: Driver-side airbag standard. Seatbelts: Front three-point seat belts. Active Features ABS: Anti-lock Braking System (ABS) available as an option. 💡 Technology Features Infotainment Audio System: Premium audio system with cassette player and optional CD player available. Climate Control: Automatic climate control available on higher trims. Driver Assistance Cruise Control: Standard on most models. 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual for specific interval (typically 3,750-5,000 miles or 6 months). Timing Belt Replacement: Refer to manual for specific interval (critical component for VG30DE engine). Fluid Specifications Engine Oil Type: Refer to manual for specific API service classification and viscosity grade (e.g., 10W-30 or 5W-30). Coolant Type: Refer to manual for type (likely ethylene glycol-based). Transmission Fluid Type Auto: Refer to manual for specific ATF type (e.g., Dexron III or equivalent). Transmission Fluid Type Manual: Refer to manual for specific gear oil specification. Known Issues Common Issues General: Age-related wear on suspension bushings, climate control O-rings, electrical connectors, and potential head gasket issues (though less common than some other V6s of the era). Common Issues Engine: VCT (Variable Cam Timing) system on some VG30DE variants can be a point of failure if not maintained. 📚 Vehicle History Brand Heritage Infiniti Launch: Infiniti was launched in 1989 as Nissan's luxury division. Model Evolution M30 Basis: The Infiniti M30 was based on the Nissan Leopard F31 chassis. Production Production Location: Japan (for Nissan Leopard/Infiniti M30) 🏆 Awards & Recognition Recognitions Infiniti Reputation: Infiniti brand established a reputation for luxury and performance during this era.