Infiniti Q45 1997-2001 Fuel System Specifications
Explore the comprehensive fuel specifications for the 1997-2001 Infiniti Q45. Learn about fuel type, octane rating, tank capacity, and consumption rates to optimize performance and efficiency.
Overview Specifications
This document provides detailed fuel specifications for the 1997-2001 Infiniti Q45. It includes information on fuel type, consumption, tank capacity, and other related technical details. Use this guide to understand the fuel requirements and performance of your vehicle. The document is organized into sections for easy navigation, and includes a quick reference table for key specifications.
How to Use
Use the search function to quickly find specific terms or phrases. Enter your query in the search bar and press enter. The results will highlight relevant sections and details.
Navigate through the document by scrolling or using the table of contents. Click on section titles to jump directly to the information you need. Use the quick reference table for a summary of key specifications.
Key Specifications
Fuel Type
Premium Unleaded
Octane Rating
91 or higher
Fuel Tank Capacity
21.1 gal
City Mileage
16-18 MPG
Highway Mileage
22-24 MPG
Available Specifications
Fuel Type and Requirements
This section covers the type of fuel recommended for the 1997-2001 Infiniti Q45, as well as any specific requirements or additives that may be necessary for optimal performance.
Fuel Type and Requirements
This section covers the type of fuel recommended for the 1997-2001 Infiniti Q45, as well as any specific requirements or additives that may be necessary for optimal performance.
Recommended Fuel Type
- Premium unleaded gasoline with an octane rating of 91 or higher
- Lower octane fuel can be used but may reduce performance
- Avoid using diesel or alternative fuels
- Use of fuel additives is generally not required
Fuel System Specifications
- Sequential multi-port fuel injection system
- Fuel pressure regulator maintains optimal pressure
- Fuel filter should be replaced every 30,000 miles
- Fuel pump is located inside the fuel tank
Fuel Consumption and Efficiency
This section provides information on the fuel consumption rates and efficiency of the 1997-2001 Infiniti Q45, including city and highway mileage estimates.
Fuel Consumption and Efficiency
This section provides information on the fuel consumption rates and efficiency of the 1997-2001 Infiniti Q45, including city and highway mileage estimates.
Mileage Estimates
- City mileage: approximately 16-18 MPG
- Highway mileage: approximately 22-24 MPG
- Combined mileage: approximately 19-20 MPG
- Actual mileage may vary based on driving conditions and habits
Factors Affecting Efficiency
- Driving style: aggressive driving reduces efficiency
- Vehicle maintenance: regular tune-ups improve mileage
- Tire pressure: proper inflation is crucial for fuel efficiency
- Load: carrying heavy loads decreases mileage
Fuel Tank and Capacity
This section details the fuel tank specifications of the 1997-2001 Infiniti Q45, including capacity, materials, and safety features.
Fuel Tank and Capacity
This section details the fuel tank specifications of the 1997-2001 Infiniti Q45, including capacity, materials, and safety features.
Fuel Tank Specifications
- Fuel tank capacity: 21.1 gallons (80 liters)
- Material: high-density polyethylene for durability
- Safety features include a rollover valve and fuel cut-off system
- Fuel tank is located in the rear of the vehicle
Refueling Information
- Fuel filler cap is located on the driver's side rear
- Automatic shut-off feature prevents overfilling
- Regularly check for fuel leaks or damage to the tank
- Use a funnel to avoid spillage during refueling
Search Specifications
Search by specification name, value, or description
Type to search through torque specifications. Results will appear below as you type.
Component Specifications
Overview
- Type
- Gasoline
- Octane Rating
- 91 (recommended)
- Fuel System
- Sequential Multi-Port Fuel Injection
- Tank Capacity
- 20.1 gallons (76.1 liters)
- Fuel Economy
- 17 mpg city / 23 mpg highway (estimated)
Dimensions
- Tank Length
- 42.5 inches (108 cm)
- Tank Width
- 28.3 inches (72 cm)
- Tank Height
- 12.6 inches (32 cm)
- Filler Neck Diameter
- 1.5 inches (3.8 cm)
- Fuel Line Diameter
- 0.375 inches (9.5 mm)
- Fuel Pump Output
- 45 psi (310 kPa)
- Fuel Filter Size
- 5.5 inches x 2.2 inches (14 cm x 5.6 cm)
Materials
- Tank Material
- High-density polyethylene
- Fuel Lines
- Reinforced synthetic rubber
- Filler Neck
- Stainless steel
- Fuel Pump
- Thermoplastic housing with stainless steel internals
Features
- Fuel Delivery
-
- High-pressure fuel pump
- Returnless fuel system
- Variable pressure regulation
- Emissions Control
-
- Evaporative emissions system
- Charcoal canister
- OBD-II compliant
- Safety
-
- Rollover valve
- Impact-resistant tank
- Leak detection system
- Monitoring
-
- Low fuel warning light
- Fuel level sensor
- Fuel trim monitoring
- Maintenance
-
- Replaceable fuel filter
- Serviceable fuel pump
- Accessible fuel lines
Safety Features
- Tank Protection
-
- Impact-resistant design
- Fire-resistant materials
- Leak Prevention
-
- Sealed fuel system
- Automatic shutoff valve
- Crash Safety
-
- Fuel pump cutoff switch
- Rollover protection
Comfort Features
- Refueling
-
- Easy-access fuel door
- Locking fuel cap
- Automatic fuel shutoff
- Driving
-
- Smooth fuel delivery
- Consistent fuel pressure
- Quiet operation
- Maintenance
-
- Easy fuel filter replacement
- Accessible fuel pump
- Clear fuel lines
Accessories
- Fuel Caps
-
- Locking fuel cap
- Vented fuel cap
- OEM replacement cap
- Fuel Additives
-
- Fuel system cleaner
- Octane booster
- Fuel stabilizer
- Tools
-
- Fuel pressure gauge
- Fuel line disconnect tool
- Fuel pump removal tool
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect fuel lines for leaks
- Replace fuel filter
- Check fuel pump operation
- Test fuel pressure
- Inspect fuel tank for damage
- Maintenance Notes
- Use only recommended fuel grade to avoid engine damage.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Fuel system components
- Emissions
- Miles: 50,000Years: 4Coverage: Evaporative emissions system
- Corrosion
- Miles: UnlimitedYears: 7Coverage: Fuel tank corrosion
- Extended
- Miles: 100,000Years: 7Coverage: Fuel pump and injectors
Production Details
- Manufacturer
- Infiniti (Nissan Motor Co.)
- Manufacturing Process
-
- Injection molding for fuel tank
- Robotic assembly for fuel lines
- Precision machining for fuel pump
- Quality Control
- Pressure Testing: 100% of fuel tanksLeak Testing: 100% of fuel systemsDurability Testing: Simulated 150,000 miles
- Sustainability Practices
-
- Recycled materials in fuel tank
- Low-emission manufacturing
- Eco-friendly packaging
- Production Metrics
- Annual Production: Approx. 15,000 unitsDefect Rate: Less than 0.1%Lead Time: 2 weeks
Service Information for Fuel System Service
Maintenance and service requirements specific to the fuel system
- Inspect fuel lines and connections
- Replace fuel filter
- Check fuel pump operation
- Test fuel pressure
- Inspect fuel tank for damage
Use only OEM or equivalent parts for replacements.
- Replace fuel filter
- Inspect fuel injectors
- Check fuel pressure regulator
- Test evaporative emissions system
- Inspect fuel tank straps
Perform fuel system cleaning if necessary.
- Replace fuel pump assembly
- Inspect and clean fuel injectors
- Replace fuel pressure regulator
- Inspect and replace fuel lines if needed
- Perform complete fuel system diagnostic
Consider replacing all fuel system components if signs of wear are present.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of fuel is compatible with the 1997-2001 Infiniti Q45?
What type of fuel is compatible with the 1997-2001 Infiniti Q45?
The 1997-2001 Infiniti Q45 is designed to run on premium unleaded gasoline with an octane rating of 91 or higher. Using lower octane fuel may result in reduced performance and engine knocking. The fuel tank capacity is approximately 20.1 gallons, and the vehicle features a 4.1-liter V8 engine optimized for high-octane fuel. Always consult the owner's manual for specific fuel recommendations.
Q2 What are the maintenance requirements for the Infiniti Q45's fuel system?
What are the maintenance requirements for the Infiniti Q45's fuel system?
Regular maintenance for the fuel system includes inspecting and replacing the fuel filter every 30,000 miles, checking fuel injectors for clogs, and ensuring the fuel pump operates correctly. Additionally, use fuel system cleaners periodically to prevent carbon buildup. Follow the manufacturer's recommended service intervals outlined in the owner's manual for optimal performance and longevity.
Q3 How do I replace the fuel filter in a 1997-2001 Infiniti Q45?
How do I replace the fuel filter in a 1997-2001 Infiniti Q45?
To replace the fuel filter, first, relieve fuel system pressure by disconnecting the fuel pump fuse and running the engine until it stalls. Locate the fuel filter near the fuel tank. Disconnect the fuel lines and remove the old filter. Install the new filter, ensuring the arrow points toward the engine. Reconnect the fuel lines and restore power to the fuel pump. Test for leaks before driving.
Q4 What should I do if my Infiniti Q45 experiences fuel delivery issues?
What should I do if my Infiniti Q45 experiences fuel delivery issues?
If your Q45 has fuel delivery problems, start by checking the fuel pump fuse and relay. Inspect the fuel filter for clogs and test fuel pressure using a gauge. If pressure is low, the fuel pump may need replacement. Also, ensure the fuel injectors are clean and functioning. If issues persist, consult a professional mechanic for further diagnostics.
Q5 How can I optimize the fuel efficiency of my Infiniti Q45?
How can I optimize the fuel efficiency of my Infiniti Q45?
To improve fuel efficiency, maintain proper tire pressure, use high-quality premium fuel, and keep the engine well-tuned. Regularly replace air filters and spark plugs, and avoid aggressive driving habits. Lightening the vehicle's load and using cruise control on highways can also enhance fuel economy. Follow the manufacturer's maintenance schedule for optimal performance.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1997-2001 Infiniti Q45 Service Manual
Coming SoonComprehensive guide covering maintenance, repairs, and technical specifications for the Infiniti Q45.
Infiniti Q45 Technical Service Bulletin
Coming SoonLatest updates and fixes for common issues related to the Q45's fuel system and other components.
Infiniti Q45 Parts and Accessories Catalog
Coming SoonDetailed catalog of OEM and aftermarket parts for the 1997-2001 Infiniti Q45, including fuel system components.
About the Author
Expert automotive knowledge and experience
'/%3E%3Cpath d='M60 30a20 20 0 1 1 0 40 20 20 0 0 1 0-40zm0 45c16.5 0 30 7.5 30 16.8V100H30v-8.2c0-9.3 13.5-16.8 30-16.8z' fill='%23404040'/%3E%3C/svg%3E)
Diagnostic
Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.
Repair
Expert in both traditional mechanical repairs and modern vehicle systems.
Additional Expertise
Documentation
Created over 500 detailed repair guides and technical documents.
Training
Conducted technical training sessions and contributed to repair databases.
Certifications & Research
Certifications
- ASE Master Technician Certification
- Advanced Diagnostic Specialist
- Hybrid/Electric Vehicle Systems
- Performance Tuning Expert
Research & Community
Actively researches emerging technologies and contributes to automotive forums.
Legal Disclaimer
Important information about using this content
Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
General Information
Warranty & Liability
The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.
We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.