Infiniti FX35 2009-2013 Fuel System Specifications
Infiniti FX35 2009-2013

Infiniti FX35 2009-2013 Fuel System Specifications

Explore the detailed fuel specifications for the 2009-2013 Infiniti FX35. Learn about fuel type, tank capacity, economy, and system components for optimal performance and maintenance.

Updated

Overview Specifications

This document provides detailed fuel specifications and related information for the 2009-2013 Infiniti FX35. It is designed to assist owners, mechanics, and enthusiasts in understanding the vehicle's fuel system, efficiency, and maintenance requirements. The content is organized into sections for easy navigation and includes a quick reference guide for key specifications. Use the search and navigation instructions to find specific details quickly.

How to Use

Use the search functionality to locate specific terms or topics within the document. Enter keywords related to fuel types, efficiency, or maintenance for targeted results.

Navigate through the document using the section titles and subsections. Each section is labeled for clarity, and the quick reference guide provides an overview of key specifications.

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 recommended fuel type for the 2009-2013 Infiniti FX35, including octane ratings and any specific requirements to ensure optimal performance and engine longevity.

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
  • Avoid using fuel with ethanol content above 10%
  • Use of lower octane fuel may cause engine knocking
Fuel Additives
  • Infiniti does not recommend the use of fuel additives
  • Additives may affect the fuel system and engine performance
  • Only use additives approved by Infiniti if necessary
  • Regular maintenance is preferred over additive use

Fuel Efficiency

This section provides information on the fuel efficiency of the 2009-2013 Infiniti FX35, including EPA estimates and factors that may affect mileage.

EPA Estimates
  • City driving: 16 MPG
  • Highway driving: 23 MPG
  • Combined city/highway: 19 MPG
  • Actual mileage may vary based on driving conditions
Factors Affecting Efficiency
  • Driving habits (e.g., aggressive acceleration)
  • Terrain and road conditions
  • Vehicle load and cargo weight
  • Proper tire inflation and maintenance

Fuel System Maintenance

This section outlines maintenance practices to keep the fuel system of the 2009-2013 Infiniti FX35 in optimal condition, including inspection and cleaning recommendations.

Regular Inspections
  • Check fuel lines for leaks or damage
  • Inspect fuel injectors for clogs or wear
  • Monitor fuel filter condition and replace as needed
  • Ensure fuel cap is tightly sealed to prevent evaporation
Cleaning Procedures
  • Use a fuel system cleaner every 15,000 miles
  • Clean fuel injectors to maintain performance
  • Remove carbon buildup from throttle body
  • Follow manufacturer guidelines for cleaning products

Component Specifications

Overview

Type
Gasoline
Octane Rating
91 (recommended)
Fuel Tank Capacity
21.7 gallons (US)
Fuel System
Sequential Multi-Port Fuel Injection
Emission Standard
Tier 2 Bin 5

Dimensions

Fuel Tank Length
34.6 inches
Fuel Tank Width
22.8 inches
Fuel Tank Height
12.4 inches
Fuel Tank Volume
82.1 liters
Fuel Line Diameter
0.375 inches
Fuel Pump Pressure
50 psi
Fuel Filter Size
4.5 inches x 2.5 inches

Materials

Fuel Tank
High-density polyethylene
Fuel Lines
Nylon with synthetic rubber coating
Fuel Pump
Aluminum housing with stainless steel internals
Fuel injectors
Stainless steel with plastic housing

Features

Fuel Efficiency
  • VVEL (Variable Valve Event and Lift) technology
  • Optimized air-fuel mixture
  • Eco Mode driving option
Fuel Delivery
  • High-pressure fuel pump
  • Sequential fuel injection
  • Direct fuel rail system
Safety
  • Rollover fuel shutoff valve
  • Evaporative emission control system
  • Fuel tank impact protection
Monitoring
  • Real-time fuel consumption display
  • Low fuel warning system
  • Range estimation
Environmental
  • Low sulfur fuel compatibility
  • Reduced evaporative emissions
  • Catalytic converter compatible

Safety Features

Crash Protection
  • Fuel tank impact shields
  • Automatic fuel pump shutoff
Fire Prevention
  • Flame arrestor in fuel tank
  • Heat-resistant fuel lines
Emission Control
  • EVAP system
  • Oxygen sensors

Comfort Features

Refueling
  • Easy-access fuel door
  • Capless fuel filler
  • Automatic fuel pump shutoff
Driving
  • Smooth fuel delivery
  • Quiet fuel pump operation
  • Stable fuel pressure
Maintenance
  • Long-life fuel filter
  • Easy-access fuel pump
  • Durable fuel lines

Accessories

Refueling
  • Fuel funnel
  • Fuel cap replacement
  • Fuel system cleaner
Maintenance
  • Fuel filter replacement
  • Fuel injector cleaner
  • Fuel pump repair kit
Performance
  • High-flow fuel pump
  • Upgraded fuel injectors
  • Performance fuel rail

Maintenance

Service interval
Every 30,000 miles
Service Items
  • Inspect fuel lines
  • Replace fuel filter
  • Check fuel pump pressure
  • Inspect EVAP system
  • Clean fuel injectors
Maintenance Notes
Use only recommended fuel additives and octane levels

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Fuel system components
Powertrain
Miles: 60,000
Years: 5
Coverage: Fuel pump and injectors
Emissions
Miles: 80,000
Years: 8
Coverage: EVAP system and oxygen sensors
Corrosion
Miles: Unlimited
Years: 7
Coverage: Fuel tank and lines

Production Details

Manufacturer
Infiniti
Manufacturing Process
  • Injection molding for fuel tank
  • Precision machining for fuel pump
  • Automated assembly for fuel lines
Quality Control
Pressure Testing: Fuel tank and lines
Leak Detection: EVAP system
Performance Check: Fuel pump and injectors
Sustainability Practices
  • Recycled materials in fuel tank
  • Low-emission manufacturing
  • Energy-efficient production
Production Metrics
Annual Production: 50,000 units
Defect Rate: Less than 0.1%
Energy Usage: 20 kWh per unit

Service Information for fuel Service

Maintenance and service requirements specific to the fuel system

15,000
12
  • Inspect fuel lines for leaks
  • Check fuel pump pressure
  • Inspect EVAP system
  • Clean fuel injectors
  • Test fuel tank integrity

Ensure all connections are secure and free of debris

30,000
24
  • Replace fuel filter
  • Inspect fuel pump operation
  • Check fuel rail pressure
  • Test oxygen sensors
  • Inspect fuel tank for damage

Use only manufacturer-approved replacement parts

60,000
48
  • Replace fuel pump if necessary
  • Clean or replace fuel injectors
  • Inspect and replace fuel lines if needed
  • Test EVAP system functionality
  • Perform full fuel system diagnostics

Major service interval may require specialized tools

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of fuel is compatible with the 2009-2013 Infiniti FX35?

The 2009-2013 Infiniti FX35 is designed to run on premium unleaded gasoline with an octane rating of 91 or higher. Using lower-octane fuel may reduce performance and fuel efficiency. The vehicle’s fuel tank capacity is 23.8 gallons. It is essential to avoid using diesel or E85 ethanol blends, as they are not compatible with the engine and may cause damage.

Q2

What are the maintenance requirements for the fuel system in the Infiniti FX35?

The fuel system in the Infiniti FX35 requires regular maintenance to ensure optimal performance. Replace the fuel filter every 30,000 miles or as recommended in the owner’s manual. Inspect fuel lines and connections for leaks or wear during routine service. Use fuel system cleaners every 15,000 miles to prevent carbon buildup. Always use high-quality fuel to minimize deposits in the fuel injectors and combustion chambers.

Q3

How do I replace the fuel filter on a 2009-2013 Infiniti FX35?

To replace the fuel filter, first, locate it near the fuel tank. Relieve fuel system pressure by removing the fuel pump fuse and running the engine until it stalls. Disconnect the negative battery terminal. Remove the fuel lines and mounting bolts from the filter. Install the new filter, reconnect the fuel lines, and secure it with mounting bolts. Reconnect the battery and test for leaks before starting the engine.

Q4

What should I do if my Infiniti FX35 has poor fuel efficiency?

If your FX35 experiences poor fuel efficiency, check for issues such as clogged air filters, faulty oxygen sensors, or dirty fuel injectors. Ensure tires are properly inflated and the engine is running at optimal temperature. Scan for diagnostic trouble codes using an OBD-II scanner to identify specific problems. Regular maintenance, such as replacing spark plugs and using high-quality fuel, can also improve fuel efficiency.

Q5

How can I optimize the fuel performance of my Infiniti FX35?

To optimize fuel performance, use premium unleaded gasoline with an octane rating of 91 or higher. Regularly replace air filters, spark plugs, and fuel filters. Maintain proper tire pressure and avoid excessive idling or aggressive driving. Use fuel system cleaners periodically to prevent carbon buildup. Ensure the engine is tuned correctly and address any diagnostic trouble codes promptly.

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 FX35 Service Manual

Coming Soon

Comprehensive guide covering maintenance, repairs, and technical specifications for the 2009-2013 Infiniti FX35.

Technical Service Bulletin (TSB) for Fuel System

Coming Soon

Latest updates and fixes for known fuel system issues in the 2009-2013 Infiniti FX35.

Infiniti FX35 Parts and Accessories Catalog

Coming Soon

Detailed catalog of OEM parts and accessories for the 2009-2013 Infiniti FX35, including fuel system components.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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