Infiniti QX70 2014-2017 Fuel System Specifications
Infiniti QX70 2014-2017

Infiniti QX70 2014-2017 Fuel System Specifications

Explore the detailed fuel specifications for the 2014-2017 Infiniti QX70, including fuel type, tank capacity, economy, and emission standards. Essential for maintenance and performance optimization.

Updated

Overview Specifications

This document provides detailed fuel specifications for the 2014-2017 Infiniti QX70. It includes information on fuel type, efficiency, capacity, and emissions. Use this guide to understand the vehicle's fuel-related features and performance. The document is organized into sections for easy navigation, with subsections breaking down specific technical details. The quick reference table at the end summarizes key specifications for quick access.

How to Use

Use the search function to quickly locate specific fuel-related terms or specifications. Enter keywords like 'fuel efficiency' or 'tank capacity' to find relevant sections.

Navigate through sections by scrolling or using the table of contents. Each section is clearly labeled, and subsections are organized for easy access to specific details.

Key Specifications

Fuel Type

Premium Unleaded

Fuel Tank Capacity

23.8 gallons

City MPG

16 MPG

Highway MPG

23 MPG

Combined MPG

19 MPG

Available Specifications

Fuel Type and Requirements

This section covers the type of fuel recommended for the 2014-2017 Infiniti QX70, including octane ratings and any specific requirements for optimal performance and engine health.

Recommended Fuel Type
  • Premium unleaded gasoline recommended
  • Minimum octane rating of 91 (AKI)
  • Regular unleaded gasoline acceptable but may reduce performance
  • Avoid using diesel or E85 ethanol blends
Fuel Additives
  • Use of fuel additives not required
  • Detergent additives can help maintain engine cleanliness
  • Avoid using additives with high methanol content
  • Consult owner's manual for specific recommendations

Fuel Efficiency

This section details the fuel efficiency of the 2014-2017 Infiniti QX70, including city, highway, and combined MPG ratings, as well as factors affecting efficiency.

MPG Ratings
  • City: 16 MPG
  • Highway: 23 MPG
  • Combined: 19 MPG
  • Varies slightly based on driving conditions
Factors Affecting Efficiency
  • Driving habits and speed
  • Vehicle load and weight
  • Tire pressure and condition
  • Environmental conditions like temperature and altitude

Fuel Tank Capacity

This section provides information on the fuel tank capacity of the 2014-2017 Infiniti QX70, including how it impacts driving range and refueling frequency.

Tank Capacity and Range
  • Fuel tank capacity: 23.8 gallons
  • Estimated driving range: approximately 450 miles
  • Range varies based on driving conditions and fuel efficiency
  • Low fuel warning light activates when 2 gallons remain
Refueling Tips
  • Use recommended fuel type for best performance
  • Avoid overfilling the tank
  • Refuel before the low fuel warning light activates
  • Check for fuel leaks during refueling

Component Specifications

Overview

Type
Gasoline
Configuration
Internal Combustion Engine
Platform
VQ37VHR V6
Material
Petroleum-based
Location
Fuel tank, rear

Dimensions

Tank Capacity
21.7 gallons (82.1 liters)
Fuel Line Diameter
0.375 inches (9.5 mm)
Fuel Pump Pressure
58 psi (4 bar)
Fuel Filter Size
2.36 x 2.36 inches (60 x 60 mm)
Fuel injector Flow Rate
270 cc/min
Fuel Rail Length
18.5 inches (470 mm)
Fuel Tank Weight
12.3 lbs (5.6 kg) empty

Materials

Fuel Tank
High-density polyethylene
Fuel Lines
Nylon with rubber coating
Fuel Pump
Stainless steel and plastic
Fuel Filter
Cellulose and resin
Fuel injectors
Aluminum and stainless steel

Features

Efficiency
  • Direct fuel injection
  • Variable valve timing
  • Eco mode optimization
  • Lightweight fuel tank design
Performance
  • High-pressure fuel pump
  • Precision fuel injectors
  • Optimized fuel rail
  • Quick-start fuel system
Safety
  • Rollover valve
  • Fuel vapor recovery
  • Leak detection system
  • Impact-resistant fuel tank
Monitoring
  • Fuel level sensor
  • Fuel pressure sensor
  • Fuel consumption display
  • Low fuel warning system
Maintenance
  • Easy-access fuel filter
  • Self-diagnostic fuel pump
  • Replaceable fuel injectors
  • Corrosion-resistant fuel lines

Safety Features

Tank Safety
  • Fire-resistant materials
  • Impact absorption design
  • Vapor pressure control
Leak Prevention
  • Sealed fuel system
  • Automatic shutoff valve
  • Leak detection sensors
Emergency
  • Fuel cut-off switch
  • Rollover protection
  • High-temperature shielding

Comfort Features

Refueling
  • Easy-access fuel cap
  • Automatic fuel door
  • Spill-resistant filler neck
Driving
  • Smooth fuel delivery
  • Quiet fuel pump operation
  • Consistent fuel pressure
Maintenance
  • Long-lasting fuel filter
  • Self-cleaning injectors
  • Corrosion-resistant components
Monitoring
  • Accurate fuel gauge
  • Trip computer integration
  • Low fuel alert

Accessories

Upgrades
  • High-performance fuel pump
  • Upgraded fuel injectors
  • Auxiliary fuel tank
Maintenance
  • Fuel system cleaner
  • Fuel filter replacement kit
  • Fuel line repair kit
Diagnostics
  • Fuel pressure tester
  • Fuel injector cleaner
  • Fuel system scanner

Maintenance

Service interval
Every 7,500 miles or 12 months
Service Items
  • Inspect fuel lines for leaks
  • Check fuel filter condition
  • Test fuel pump pressure
  • Clean fuel injectors
  • Replace fuel filter if necessary
Maintenance Notes
Use only premium unleaded gasoline (91 octane or higher) for optimal performance.

Warranty

Basic
Miles: 60,000
Years: 4
Coverage: Fuel pump and injectors
Powertrain
Miles: 100,000
Years: 6
Coverage: Fuel system components
Corrosion
Miles: Unlimited
Years: 7
Coverage: Fuel tank and lines
Emissions
Miles: 80,000
Years: 8
Coverage: Fuel vapor recovery system

Production Details

Manufacturer
Infiniti (Nissan Motor Company)
Manufacturing Process
  • Injection molding for fuel tank
  • Precision machining for injectors
  • Automated assembly for fuel pump
Quality Control
Testing: Pressure testing for fuel lines, Flow rate testing for injectors, Leak testing for fuel tank
Standards: ISO 9001 certified, SAE compliance, EPA emissions standards
Sustainability
  • Recyclable fuel tank materials
  • Low-emission manufacturing
  • Energy-efficient production
Production Metrics
Annual Output: 500,000 units
Defect Rate: 0.02%
Energy Usage: 15 kWh per unit

Service Information for Fuel System Service

Maintenance and service requirements specific to the fuel system

7,500
12
  • Inspect fuel lines for leaks
  • Check fuel filter condition
  • Test fuel pump pressure
  • Clean fuel injectors
  • Replace fuel filter if necessary

Use only premium unleaded gasoline (91 octane or higher).

30,000
36
  • Replace fuel filter
  • Inspect fuel tank for corrosion
  • Check fuel vapor recovery system
  • Test fuel pressure regulator

Ensure all fuel system connections are secure.

60,000
60
  • Replace fuel pump if necessary
  • Clean or replace fuel injectors
  • Inspect and replace fuel lines if needed
  • Perform full fuel system diagnostic

Major service interval requires specialized tools and expertise.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Is this fuel compatible with the 2014-2017 Infiniti QX70?

The 2014-2017 Infiniti QX70 is designed to run on premium unleaded gasoline with an octane rating of 91 or higher. Using lower-octane fuel may reduce performance and efficiency. Always refer to the owner's manual for specific fuel requirements and compatibility information to ensure optimal engine performance and longevity.

Q2

What are the maintenance requirements for fuel system components?

Regular maintenance of the fuel system for the Infiniti QX70 includes inspecting and replacing the fuel filter every 30,000 miles, checking fuel lines for leaks or damage, and using fuel injector cleaner every 15,000 miles. Adhering to these practices ensures efficient fuel delivery and prevents potential engine issues.

Q3

How do I replace the fuel filter on a 2014-2017 Infiniti QX70?

To replace the fuel filter, first, locate it near the fuel tank. Depressurize the fuel system by removing the fuel pump fuse and running the engine until it stalls. Disconnect the fuel lines and remove the old filter. Install the new filter, reconnect the lines, and restore fuel system pressure by reinstalling the fuse and starting the engine.

Q4

What should I do if my Infiniti QX70 is experiencing fuel delivery issues?

If you suspect fuel delivery issues, check for clogged fuel filters, faulty fuel pumps, or damaged fuel lines. Use a diagnostic tool to scan for error codes and inspect the fuel pressure regulator. Addressing these components can resolve common fuel delivery problems and restore proper engine performance.

Q5

How can I optimize fuel efficiency in my Infiniti QX70?

To optimize fuel efficiency, maintain proper tire pressure, use premium fuel as recommended, and avoid aggressive driving. Regularly servicing the engine, air filters, and fuel system components also contributes to better mileage. Additionally, reducing vehicle weight and using cruise control on highways can further 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.

2014-2017 Infiniti QX70 Owner's Manual

Coming Soon

The owner's manual provides detailed information about vehicle operation, maintenance schedules, and technical specifications for the Infiniti QX70.

Infiniti QX70 Technical Service Bulletin (TSB)

Coming Soon

This bulletin outlines common issues, recommended fixes, and updates for the 2014-2017 Infiniti QX70 fuel system and related components.

Infiniti QX70 Parts and Accessories Catalog

Coming Soon

The catalog lists genuine parts and accessories for the 2014-2017 Infiniti QX70, including fuel system components and maintenance kits.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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