Infiniti Q50 2014-present Fuel System Specifications
Infiniti Q50 2014-present

Infiniti Q50 2014-present Fuel System Specifications

Discover detailed fuel system specifications for the 2014-Present Infiniti Q50, including fuel type, capacity, consumption rates, and emission standards. This guide is essential for maintenance, performance optimization, and regulatory compliance.

Updated

Overview Specifications

This document provides detailed information about the fuel specifications and related systems for the 2014-Present Infiniti Q50. It is designed to help owners, enthusiasts, and technicians understand the vehicle's fuel requirements, efficiency, and performance. Use this guide to find specific details about fuel types, tank capacity, mileage, and other related features. The document is organized into sections for easy navigation and includes a quick reference table for key specifications.

How to Use

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Key Specifications

Fuel Type

Premium Unleaded (91 octane)

Fuel Tank Capacity

20.0 gallons

City MPG

20-22 MPG

Highway MPG

29-30 MPG

Combined MPG

23-25 MPG

Available Specifications

Fuel Types and Requirements

This section covers the types of fuel recommended for the Infiniti Q50, including the octane rating and any specific requirements for optimal performance. It also discusses the impact of using different fuel types on the vehicle's engine and overall efficiency.

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
  • Use of ethanol blends up to E10 is acceptable
  • Avoid using diesel or any other non-gasoline fuels
  • Using lower octane fuel may cause engine knocking
  • Always refer to the owner's manual for specific fuel recommendations
Fuel Additives
  • Infiniti does not recommend the use of aftermarket fuel additives
  • Fuel system cleaners may be used if approved by Infiniti
  • Additives should not contain methanol or other harmful chemicals
  • Regular use of high-quality gasoline reduces the need for additives
  • Consult a dealer before using any fuel treatment products
  • Improper use of additives can damage the fuel system

Fuel Efficiency and Performance

This section provides detailed information on the Infiniti Q50's fuel efficiency, including EPA-estimated mileage figures and real-world performance. It also discusses factors that can affect fuel economy and tips for improving efficiency.

EPA-Estimated Mileage
  • City: 20-22 MPG
  • Highway: 29-30 MPG
  • Combined: 23-25 MPG
  • Mileage varies based on engine and drivetrain configuration
  • Hybrid models offer improved fuel efficiency
  • Actual mileage may differ based on driving conditions
Factors Affecting Fuel Economy
  • Driving habits such as rapid acceleration and braking
  • Vehicle load and cargo weight
  • Tire pressure and condition
  • Weather conditions and temperature
  • Use of air conditioning and other accessories
  • Terrain and road conditions
Tips for Improving Efficiency
  • Maintain proper tire pressure
  • Avoid excessive idling
  • Use cruise control on highways
  • Keep the engine well-maintained with regular service
  • Reduce vehicle weight by removing unnecessary items
  • Plan trips to minimize stop-and-go driving

Fuel System and Tank

This section details the Infiniti Q50's fuel system components, including the fuel tank capacity, fuel pump, and fuel injection system. It also covers maintenance tips and common issues related to the fuel system.

Fuel Tank Capacity
  • 20.0 gallons (75.7 liters)
  • Provides a range of approximately 400-600 miles per fill-up
  • Tank is made of durable, corrosion-resistant materials
  • Fuel level sensor provides accurate readings
  • Low fuel warning light activates with approximately 2 gallons remaining
  • Regularly check for leaks or damage to the fuel tank
Fuel Injection System
  • Direct fuel injection for improved efficiency and performance
  • High-pressure fuel pump ensures optimal fuel delivery
  • Injectors are designed for precise fuel metering
  • System is self-diagnosing with error codes for troubleshooting
  • Regular maintenance includes cleaning injectors
  • Use of high-quality fuel prevents injector clogging
Fuel Pump
  • Electric fuel pump located inside the fuel tank
  • Designed for high reliability and long service life
  • Maintains consistent fuel pressure for optimal engine performance
  • Common signs of failure include engine sputtering or no start
  • Replacement requires professional service
  • Regular fuel filter changes protect the fuel pump

Component Specifications

Overview

Type
Gasoline
Configuration
Direct injection
Platform
VR-series engine
Material
Aluminum alloy
Location
Front-engine, rear-wheel drive/AWD

Dimensions

Fuel Tank Capacity
20.0 gallons (75.7 liters)
Fuel Pump Pressure
58 psi (400 kPa)
Fuel Line Diameter
0.3125 inches (7.94 mm)
Fuel Filter Size
2.36 x 3.94 inches (60 x 100 mm)
Fuel injector Flow Rate
24.5 lb/hr (260 cc/min)
Fuel Rail Length
15.75 inches (400 mm)
Fuel Pump Flow Rate
45 gallons per hour (170 liters per hour)

Materials

Fuel Tank
High-density polyethylene
Fuel Lines
Nylon with stainless steel reinforcement
Fuel Rail
Aluminum alloy
Fuel Pump
Thermoplastic with stainless steel components
Fuel injectors
Stainless steel with teflon seals

Features

Fuel Delivery
  • High-pressure direct injection
  • Variable pressure fuel pump
  • Sequential multi-port injection
  • Electronic throttle control
Efficiency
  • Idle-stop system
  • Eco mode optimization
  • Variable valve timing
  • Active grille shutters
Monitoring
  • Real-time fuel consumption display
  • Low fuel warning system
  • Fuel system diagnostics
  • Range estimation
Safety
  • Rollover valve protection
  • Impact-activated fuel shutoff
  • Evaporative emission control
  • Fuel tank pressure monitoring
Performance
  • Sport mode fuel mapping
  • Adaptive fuel delivery
  • High-flow fuel pump
  • Precision injectors

Safety Features

Emergency
  • Automatic fuel shutoff
  • Impact-resistant fuel tank
  • Rollover protection
Leak Prevention
  • Double-walled fuel lines
  • Pressure monitoring system
  • Evaporative emissions control
Fire Prevention
  • Thermal protection shields
  • Flame arrestor in fuel tank
  • Automatic fuel pump cutoff

Comfort Features

Refueling
  • Capless fuel filler
  • Easy-access fuel door
  • Fuel level indicator
Driving
  • Smooth fuel delivery
  • Quiet fuel pump operation
  • Stable fuel pressure
Maintenance
  • Easy-access fuel filter
  • Long-life components
  • Diagnostic port access

Accessories

Performance
  • High-flow fuel pump
  • Performance fuel injectors
  • Upgraded fuel rails
Maintenance
  • Fuel system cleaner
  • Fuel filter kit
  • Fuel pump relay
Monitoring
  • Fuel pressure gauge
  • Fuel consumption monitor
  • Range calculator

Maintenance

Service interval
15,000 miles or 12 months
Items
  • Fuel filter replacement
  • Fuel system inspection
  • Fuel injector cleaning
  • Fuel pump performance check
  • Fuel line integrity check
Notes
Use only premium unleaded fuel (91 octane or higher) for optimal performance

Warranty

Basic
3 years/36,000 miles - covers fuel pump and injectors
Powertrain
6 years/70,000 miles - covers fuel system components
Emissions
8 years/80,000 miles - covers evaporative emissions system
Corrosion
7 years/unlimited miles - covers fuel tank corrosion
Terms
Warranty requires regular maintenance at authorized service centers

Production Details

Manufacturer
Infiniti
Process
  • Computer-controlled fuel system assembly
  • Precision fuel injector calibration
  • Automated pressure testing
Quality Control
Pressure Testing: 100% of fuel systems tested
Leak Detection: Helium mass spectrometer testing
Performance Verification: Dynamic flow testing on all injectors
Sustainability
  • Recyclable fuel system components
  • Low-emission manufacturing process
  • Energy-efficient production facilities
Production Metrics
Daily Output: 1,200 fuel systems
Defect Rate: 0.002%
Testing Time: 45 minutes per system

Service Information for Fuel System Service

Maintenance and service requirements specific to the fuel system

15,000
12
  • Fuel system inspection
  • Fuel filter replacement
  • Fuel injector cleaning
  • Fuel line integrity check
  • Fuel pump performance test

Use only premium unleaded fuel (91 octane or higher)

30,000
24
  • Complete fuel system flush
  • Fuel pressure regulator check
  • Evaporative emissions system test
  • Fuel tank inspection
  • Fuel pump relay replacement

Perform complete system diagnostics

60,000
48
  • Fuel pump replacement
  • Fuel injector replacement
  • Fuel rail inspection
  • Complete system pressure test
  • Fuel tank cleaning

Consider complete fuel system overhaul

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of fuel is recommended for the 2014-Present Infiniti Q50?

The 2014-Present Infiniti Q50 is designed to run on premium unleaded gasoline with an octane rating of 91 or higher. While it can operate on regular unleaded gasoline with an octane rating of 87, using premium fuel is recommended for optimal performance, fuel efficiency, and engine longevity. Always refer to the owner's manual for specific fuel requirements and consult with a certified Infiniti technician for further guidance.

Q2

How often should I replace the fuel filter on my Infiniti Q50?

The fuel filter in the Infiniti Q50 is typically designed to last the lifetime of the vehicle under normal driving conditions. However, it is advisable to inspect it every 30,000 to 60,000 miles or as recommended in the owner's manual. If you notice reduced engine performance, poor fuel economy, or difficulty starting the vehicle, have the fuel filter checked by a professional technician.

Q3

How do I replace the fuel pump in a 2014-Present Infiniti Q50?

Replacing the fuel pump in an Infiniti Q50 involves several steps: 1) Disconnect the negative battery terminal for safety. 2) Relieve fuel system pressure by removing the fuel pump fuse and running the engine until it stalls. 3) Remove the rear seat cushion to access the fuel pump assembly. 4) Disconnect the fuel lines and electrical connectors. 5) Remove the fuel pump assembly and replace it with a new one. Reassemble in reverse order and test the system. Always consult the service manual for detailed instructions.

Q4

What should I do if my Infiniti Q50 is experiencing fuel system issues?

If your Infiniti Q50 is experiencing fuel system issues such as poor acceleration, engine misfires, or fuel leaks, start by checking for diagnostic trouble codes using an OBD-II scanner. Inspect the fuel cap for tightness and damage, and ensure the fuel filter and fuel pump are functioning correctly. If the issue persists, consult a certified Infiniti technician for a thorough diagnosis and repair.

Q5

How can I improve the fuel efficiency of my Infiniti Q50?

To improve the fuel efficiency of your Infiniti Q50, maintain regular service intervals, including oil changes and air filter replacements. Use the recommended premium unleaded gasoline and avoid aggressive driving habits such as rapid acceleration and hard braking. Ensure proper tire inflation and alignment, and remove unnecessary weight from the vehicle. Additionally, consider using cruise control on highways to maintain a consistent 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.

Infiniti Q50 Owner's Manual

Coming Soon

The official owner's manual for the 2014-Present Infiniti Q50, covering operation, maintenance, and troubleshooting.

Infiniti Q50 Service Bulletin

Coming Soon

Technical service bulletins for the 2014-Present Infiniti Q50, addressing common issues and updates.

Infiniti Q50 Parts Catalog

Coming Soon

A comprehensive catalog of OEM parts and accessories for the 2014-Present Infiniti Q50.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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