Infiniti QX50 2014-2017 Fuel System Specifications
Infiniti QX50 2014-2017

Infiniti QX50 2014-2017 Fuel System Specifications

Discover the detailed fuel system specifications for the 2014-2017 Infiniti QX50, including fuel type, tank capacity, delivery system, and consumption rates. Essential for maintenance and optimization.

Updated

Overview Specifications

This document provides detailed fuel specifications for the 2014-2017 Infiniti QX50. It includes information on fuel type, consumption, tank capacity, and efficiency. Use this guide to understand the vehicle's fuel-related features and performance. The document is organized into sections for easy navigation, with a quick reference table for key specifications. Follow the 'howTo' instructions to efficiently find the information you need.

How to Use

Use the search function to locate specific keywords or terms related to fuel specifications. Simply type the term in the search bar and press enter to see relevant results.

Navigate through the document by scrolling or using the table of contents. Click on section titles to jump directly to the desired information. Use the quick reference table for a summary of key specifications.

Key Specifications

Fuel Type

Premium Unleaded

Fuel Tank Capacity

20 gallons

City Mileage

17-18 mpg

Highway Mileage

24-25 mpg

Combined Mileage

20-21 mpg

Available Specifications

Fuel Type and Requirements

This section covers the type of fuel recommended for the 2014-2017 Infiniti QX50 and any specific requirements to ensure optimal performance and longevity of the engine.

Recommended Fuel Type
  • Premium unleaded gasoline with an octane rating of 91 or higher
  • Regular unleaded gasoline with an octane rating of 87 can be used but may reduce performance
  • Avoid using diesel or ethanol blends above 10%
  • Check the owner's manual for additional fuel recommendations
Fuel Additives
  • Use of fuel additives is generally not required
  • If necessary, use only those approved by Infiniti
  • Avoid additives containing methanol or silicone
  • Regular maintenance is more effective than additives for engine health

Fuel Consumption and Efficiency

This section provides details on the fuel consumption rates and efficiency of the 2014-2017 Infiniti QX50, including city, highway, and combined mileage figures.

Fuel Economy Ratings
  • City mileage: 17-18 miles per gallon (mpg)
  • Highway mileage: 24-25 mpg
  • Combined mileage: 20-21 mpg
  • Actual mileage may vary based on driving conditions and habits
Factors Affecting Efficiency
  • Driving style: Aggressive driving reduces fuel efficiency
  • Vehicle load: Heavier loads decrease mileage
  • Tire pressure: Properly inflated tires improve efficiency
  • Regular maintenance: Keeps the engine running efficiently

Fuel Tank and Capacity

This section outlines the fuel tank specifications for the 2014-2017 Infiniti QX50, including capacity and features related to refueling.

Fuel Tank Capacity
  • Fuel tank capacity: 20 gallons (75.7 liters)
  • Reserve fuel capacity: Approximately 2 gallons
  • Fuel gauge indicates remaining fuel level
  • Low fuel warning light alerts when fuel is low
Refueling Information
  • Fuel filler location: Right rear side of the vehicle
  • Fuel cap: Screw-on type with a tether
  • Automatic fuel shutoff: Prevents overfilling
  • Use only approved fuel nozzles for refueling

Component Specifications

Overview

Type
Premium Unleaded
Octane Rating
91 (recommended)
Tank Capacity
20 gallons (75.7 liters)
Fuel System
Direct Injection
Emissions Rating
Tier 2 Bin 5

Dimensions

Tank Length
30.5 inches (77.5 cm)
Tank Width
24 inches (61 cm)
Tank Height
14 inches (35.6 cm)
Filler Neck Diameter
1.5 inches (3.8 cm)
Fuel Line Diameter
0.5 inches (1.3 cm)
Tank Weight Empty
15 lbs (6.8 kg)
Tank Weight Full
135 lbs (61.2 kg)

Materials

Tank Material
High-Density Polyethylene
Filler Neck Material
Stainless Steel
Fuel Lines
Reinforced Synthetic Rubber
Fuel Pump
Aluminum and Plastic Composite

Features

Fuel Efficiency
  • 22 MPG city
  • 28 MPG highway
  • 24 MPG combined
Fuel Delivery
  • High-pressure fuel pump
  • Multi-point injection
  • Electronic throttle control
Monitoring Systems
  • Low fuel warning light
  • Fuel level sensor
  • Real-time MPG display
Environmental Features
  • EVAP system for emissions control
  • Sealed fuel system
  • Recyclable fuel tank materials
Safety Features
  • Automatic fuel shutoff
  • Impact-resistant fuel tank
  • Rollover valve

Safety Features

Crash Protection
  • Fuel tank impact shield
  • Automatic fuel pump shutoff
Fire Prevention
  • Flame arrestor in filler neck
  • Fire-resistant fuel lines
Leak Prevention
  • Sealed fuel system
  • Pressure relief valve

Comfort Features

Refueling
  • Easy-access fuel door
  • Automatic fuel filler locking
  • Fuel cap tether
Driving Range
  • Approximately 440 miles per tank
  • Range estimator on dashboard
Fuel Economy
  • Eco mode for improved MPG
  • Smooth acceleration tuning

Accessories

Fuel Additives
  • Fuel system cleaner
  • Octane booster
  • Water remover
Refueling Tools
  • Funnel for emergency refueling
  • Portable fuel container
  • Fuel cap replacement
Maintenance Kits
  • Fuel filter replacement kit
  • Fuel injector cleaner kit
  • Fuel system service kit

Maintenance

Service interval
  • Check fuel system every 15,000 miles
  • Inspect fuel lines every 30,000 miles
  • Replace fuel filter every 60,000 miles
  • Clean fuel injectors every 50,000 miles
  • Test fuel pump every 100,000 miles
Notes
  • Use only recommended fuel grade
  • Avoid running on empty to prevent fuel pump damage
  • Inspect for leaks during routine maintenance

Warranty

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

Production Details

Manufacturer
Infiniti
Manufacturing Process
  • Injection molding for fuel tank
  • Robotic assembly for fuel lines
  • Precision machining for fuel pump
Quality Control
Pressure Testing: Fuel tank and lines
Leak Detection: Full system testing
Material inspection: Compliance with safety standards
Sustainability Practices
  • Recyclable materials used in fuel tank
  • Low-emission manufacturing process
  • Waste reduction in production
Production Metrics
  • Annual production capacity: 50,000 units
  • Defect rate: <0.1%
  • Energy efficiency: 10% improvement over previous model

Service Information for fuel Service

Maintenance and service requirements specific to the fuel system

15,000
12
  • Inspect fuel lines for leaks
  • Check fuel cap seal
  • Test fuel pressure
  • Inspect fuel tank for damage
  • Check fuel filter condition

Ensure fuel system is free from debris

30,000
24
  • Replace fuel filter
  • Clean fuel injectors
  • Inspect EVAP system
  • Test fuel pump performance
  • Check fuel level sensor accuracy

Use OEM parts for replacement

60,000
48
  • Replace fuel pump if necessary
  • Flush fuel system
  • Inspect and replace fuel lines if worn
  • Test fuel tank integrity
  • Calibrate fuel monitoring system

Perform full system diagnostics

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of fuel is compatible with the 2014-2017 Infiniti QX50?

The 2014-2017 Infiniti QX50 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. It is important to avoid using diesel or E85 ethanol blends, as these are incompatible with the vehicle’s engine system and can cause significant damage.

Q2

What are the maintenance requirements for the fuel system in the Infiniti QX50?

Regular maintenance for the fuel system includes inspecting the fuel filter, fuel lines, and fuel injectors every 30,000 miles. The fuel filter should be replaced every 60,000 miles or as recommended in the owner’s manual. Additionally, using a fuel system cleaner every 15,000 miles can help maintain optimal performance and prevent build-up in the fuel injectors.

Q3

How do I replace the fuel filter in the 2014-2017 Infiniti QX50?

To replace the fuel filter, first, locate it near the fuel tank. Disconnect the negative battery terminal for safety. Relieve fuel system pressure 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 fuel lines, and reattach the battery terminal. Start the engine and check for leaks.

Q4

What should I do if my Infiniti QX50 experiences fuel-related issues?

If you experience issues such as poor fuel economy, engine hesitation, or difficulty starting, first check the fuel cap for proper sealing. Inspect the fuel filter and fuel injectors for blockages. Use an OBD-II scanner to check for error codes related to the fuel system. If the problem persists, consult a professional mechanic for a thorough diagnosis.

Q5

How can I optimize the fuel efficiency of my Infiniti QX50?

To optimize fuel efficiency, use premium unleaded gasoline as recommended. Regularly maintain the fuel system, including cleaning injectors and replacing the fuel filter. Avoid aggressive driving and maintain proper tire pressure. Reduce vehicle weight by removing unnecessary items and use cruise control on highways to maintain a steady speed.

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 QX50 Owner’s Manual

Coming Soon

Comprehensive guide covering vehicle operation, maintenance schedules, and fuel system specifications.

Infiniti QX50 Fuel System Technical Bulletin

Coming Soon

Technical service bulletin addressing common fuel system issues and recommended solutions.

Infiniti QX50 Parts and Accessories Catalog

Coming Soon

Detailed catalog of OEM parts and accessories, including fuel system components.

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

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