Infiniti QX56 2011-2013 Fuel System Specifications
Discover the detailed fuel system specifications for the 2011-2013 Infiniti QX56, including fuel type, tank capacity, delivery system, and fuel economy. Essential for maintenance, repairs, and performance upgrades.
Overview Specifications
This document provides detailed fuel specifications and related information for the 2011-2013 Infiniti QX56. It is designed to assist owners, technicians, and enthusiasts in understanding the vehicle's fuel system, efficiency, and maintenance requirements. The information is organized into sections for easy navigation and quick reference. Use the search functionality to locate specific terms or navigate through the sections to explore comprehensive details about the fuel system.
How to Use
Use the search bar to enter specific keywords related to fuel specifications. The system will highlight relevant sections and details, making it easy to find the information you need quickly.
Navigate through the document by clicking on the section titles in the table of contents. Each section is divided into subsections with detailed points, allowing you to explore specific aspects of the fuel system.
Key Specifications
Fuel Type
Premium Unleaded (91 octane)
Fuel Tank Capacity
28 gallons
City MPG
14 MPG
Highway MPG
20 MPG
Combined MPG
16 MPG
Available Specifications
Fuel Type and Requirements
This section covers the type of fuel recommended for the 2011-2013 Infiniti QX56, including octane ratings and any special requirements. Understanding the correct fuel type is crucial for optimal performance and longevity of the engine.
Fuel Type and Requirements
This section covers the type of fuel recommended for the 2011-2013 Infiniti QX56, including octane ratings and any special requirements. Understanding the correct fuel type is crucial for optimal performance and longevity of the engine.
Recommended Fuel Type
- Premium unleaded gasoline with an octane rating of 91 or higher
- Regular unleaded gasoline (87 octane) can be used but may reduce performance
- Do not use diesel or E85 ethanol blends
- Using lower octane fuel may cause engine knocking
Fuel Additives
- Infiniti recommends using TOP TIER Detergent Gasoline
- Avoid using fuel additives that contain metallic compounds
- Regular use of quality fuel additives can help maintain fuel system cleanliness
- Check the owner's manual for specific recommendations
Fuel Efficiency
This section provides information on the fuel efficiency of the 2011-2013 Infiniti QX56, including EPA estimates and factors that can affect mileage. Understanding fuel efficiency can help in planning trips and managing fuel costs.
Fuel Efficiency
This section provides information on the fuel efficiency of the 2011-2013 Infiniti QX56, including EPA estimates and factors that can affect mileage. Understanding fuel efficiency can help in planning trips and managing fuel costs.
EPA Fuel Economy Estimates
- City: 14 MPG
- Highway: 20 MPG
- Combined: 16 MPG
- Estimated annual fuel cost: $3,500 (based on 15,000 miles)
Factors Affecting Fuel Efficiency
- Driving habits (aggressive driving reduces efficiency)
- Vehicle load (carrying heavy loads decreases mileage)
- Tire pressure (under-inflated tires increase fuel consumption)
- Environmental conditions (cold weather reduces efficiency)
Fuel System Components
This section details the key components of the fuel system in the 2011-2013 Infiniti QX56, including the fuel tank, fuel pump, and injectors. Understanding these components can aid in maintenance and troubleshooting.
Fuel System Components
This section details the key components of the fuel system in the 2011-2013 Infiniti QX56, including the fuel tank, fuel pump, and injectors. Understanding these components can aid in maintenance and troubleshooting.
Fuel Tank
- Capacity: 28 gallons
- Material: High-density polyethylene
- Includes a fuel tank pressure sensor
- Designed to minimize evaporative emissions
Fuel Pump and Injectors
- Electric fuel pump with high-pressure output
- Direct fuel injection system for precise fuel delivery
- Injectors are designed for optimal atomization
- Regular maintenance of injectors is recommended
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Component Specifications
Overview
- Type
- Gasoline
- Octane Rating
- 91 AKI (Anti-Knock Index)
- Tank Capacity
- 28 gallons (106 liters)
- Fuel System
- Sequential multi-port fuel injection
- Emissions Standard
- Tier 2 Bin 5
Dimensions
- Tank Length
- 62.5 inches (158.75 cm)
- Tank Width
- 34.2 inches (86.87 cm)
- Tank Height
- 15.8 inches (40.13 cm)
- Filler Neck Diameter
- 1.75 inches (4.45 cm)
- Fuel Line Diameter
- 0.375 inches (0.95 cm)
- Fuel Pump Pressure
- 58 psi (400 kPa)
- Fuel Filter Size
- 3.15 x 2.36 inches (80 x 60 mm)
Materials
- Tank Material
- High-density polyethylene
- Filler Neck
- Galvanized steel
- Fuel Lines
- Nylon with EPDM rubber coating
- Fuel Pump
- Stainless steel with carbon brush motor
- Fuel Filter
- Pleated paper element with plastic housing
Features
- Fuel Delivery
-
- Electronic fuel injection
- Variable pressure fuel pump
- Returnless fuel system
- Monitoring
-
- Fuel level sensor
- Low fuel warning system
- Fuel consumption display
- Safety
-
- Rollover valve
- Fuel tank impact protection
- Evaporative emissions system
- Efficiency
-
- Optimized fuel injectors
- Air-fuel ratio control
- Closed-loop fuel system
Safety Features
- Tank Protection
-
- Impact-resistant construction
- Flame arrestor in filler neck
- Rollover fuel cutoff
- Leak Prevention
-
- Pressurized fuel system
- Double-walled fuel lines
- Automatic shutoff valve
- Emissions Control
-
- Vapor recovery system
- Charcoal canister
- Leak detection system
Comfort Features
- Refueling
-
- Capless fuel filler
- Easy-access fuel door
- Fuel level indicator
- Operation
-
- Smooth fuel delivery
- Quiet fuel pump operation
- Stable fuel pressure
Accessories
- Fuel Additives
-
- Fuel system cleaner
- Fuel stabilizer
- Octane booster
- Maintenance Tools
-
- Fuel pressure tester
- Fuel line disconnect tool
- Fuel filter wrench
- Upgrades
-
- High-performance fuel pump
- Upgraded fuel injectors
- Fuel pressure regulator
Maintenance
- interval
- Every 15,000 miles or 12 months
- Items
-
- Inspect fuel lines and connections
- Check fuel pump operation
- Test fuel pressure
- Replace fuel filter
- Inspect fuel tank for leaks
- Notes
- Use only recommended fuel type and additives
Warranty
- Basic
- 3 years/36,000 miles
- Powertrain
- 5 years/60,000 miles
- Emissions
- 8 years/80,000 miles
- Corrosion
- 7 years/unlimited miles
- Terms
- Covers defects in materials and workmanship
Production Details
- Manufacturer
- Infiniti
- Process
-
- Automated fuel tank molding
- Precision fuel pump assembly
- Robotic fuel line installation
- Quality Control
- Pressure Testing: 100% of fuel tanksLeak Detection: Ultrasonic testingPerformance Testing: Dynamic fuel flow simulation
- Sustainability
-
- Recyclable fuel tank materials
- Low-emission manufacturing
- Energy-efficient production
- Metrics
- Production Rate: 500 units/dayDefect Rate: <0.1%Energy Usage: 15 kWh per unit
Service Information for fuel Service
Maintenance and service requirements specific to the fuel system
- Inspect fuel lines for leaks
- Check fuel pump operation
- Test fuel pressure
- Inspect fuel tank condition
- Verify fuel system integrity
Use only recommended fuel type
- Replace fuel filter
- Inspect fuel injectors
- Check fuel pressure regulator
- Test fuel pump performance
- Inspect evaporative emissions system
May require specialized diagnostic equipment
- Complete fuel system inspection
- Test fuel pump and injectors
- Check fuel tank mounting
- Inspect all fuel lines and connections
- Replace fuel pump if necessary
Critical to maintain fuel system safety and performance
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of fuel is recommended for the 2011-2013 Infiniti QX56?
What type of fuel is recommended for the 2011-2013 Infiniti QX56?
The 2011-2013 Infiniti QX56 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 fuel efficiency. Infiniti recommends premium fuel to ensure optimal engine operation and to maintain the vehicle's high-performance standards. Always refer to the owner’s manual for specific fuel requirements.
Q2 How often should I replace the fuel filter in my Infiniti QX56?
How often should I replace the fuel filter in my Infiniti QX56?
The fuel filter in the 2011-2013 Infiniti QX56 is typically designed to last the lifetime of the vehicle under normal driving conditions. However, if you experience issues such as poor engine performance or difficulty starting, it may indicate a clogged fuel filter. In such cases, consult a certified technician for inspection and potential replacement. Regular maintenance checks are recommended.
Q3 How do I replace the fuel pump in my 2011-2013 Infiniti QX56?
How do I replace the fuel pump in my 2011-2013 Infiniti QX56?
Replacing the fuel pump in the 2011-2013 Infiniti QX56 involves several steps. First, disconnect the negative battery terminal for safety. Remove the rear seat to access the fuel pump assembly. Disconnect the fuel lines and electrical connectors, then unscrew the fuel pump retaining ring. Carefully remove the old fuel pump and install the new one, reassembling everything in reverse order. Always refer to the service manual for detailed instructions.
Q4 What should I do if my Infiniti QX56 is experiencing fuel delivery issues?
What should I do if my Infiniti QX56 is experiencing fuel delivery issues?
If your 2011-2013 Infiniti QX56 has fuel delivery issues, start by checking the fuel pump, fuel filter, and fuel injectors for blockages or malfunctions. Ensure the fuel tank has adequate fuel and inspect for any leaks in the fuel lines. If the issue persists, use an OBD-II scanner to check for error codes and consult a professional technician for further diagnosis and repair.
Q5 How can I improve the fuel efficiency of my Infiniti QX56?
How can I improve the fuel efficiency of my Infiniti QX56?
To improve fuel efficiency in the 2011-2013 Infiniti QX56, ensure regular maintenance, including timely oil changes, air filter replacements, and tire pressure checks. Avoid aggressive driving and excessive idling. Use the recommended premium fuel and consider using cruise control on highways. Additionally, removing unnecessary weight from the vehicle can help enhance fuel economy.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2011-2013 Infiniti QX56 Service Manual
Coming SoonThe official service manual for the 2011-2013 Infiniti QX56, covering detailed maintenance and repair procedures.
Infiniti QX56 Technical Service Bulletin
Coming SoonTechnical service bulletins for the 2011-2013 Infiniti QX56, addressing common issues and recommended solutions.
Infiniti QX56 Parts and Accessories Guide
Coming SoonA comprehensive guide to genuine parts and accessories for the 2011-2013 Infiniti QX56.
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