Infiniti G37 2009-2013 Fuel System Specifications
Infiniti G37 2009-2013

Infiniti G37 2009-2013 Fuel System Specifications

Explore the comprehensive fuel specifications for the 2009-2013 Infiniti G37, including fuel type, tank capacity, economy, and emission standards. Ideal for maintenance, performance optimization, and compliance.

Updated

Overview Specifications

This document provides detailed fuel specifications for the 2009-2013 Infiniti G37. It includes information on fuel type, fuel economy, tank capacity, and related technical details. Use this guide to understand the vehicle's fuel requirements and performance. The document is organized into sections for easy navigation, with a quick reference table for key specifications.

How to Use

Use the search function to find specific terms or phrases related to fuel specifications. Enter keywords like 'fuel economy' or 'tank capacity' to quickly locate relevant information.

Navigate through the document using the section titles and subsections. Each section is labeled clearly, and subsections provide detailed points for easy reference.

Key Specifications

Fuel Type

Premium Unleaded (91+ octane)

Fuel Tank Capacity

20 gallons

City MPG

17-19 MPG

Highway MPG

25-27 MPG

Combined MPG

20-22 MPG

Available Specifications

Fuel Type and Requirements

This section covers the type of fuel recommended for the 2009-2013 Infiniti G37, including octane ratings and any special requirements. It also discusses the impact of using alternative fuels or additives.

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 diesel or ethanol blends above 10%
  • Using lower octane fuel may cause engine knocking
Fuel Additives
  • Infiniti does not recommend using aftermarket fuel additives
  • Fuel system cleaners may be used sparingly if approved by the manufacturer
  • Avoid using additives containing methanol or silicone
  • Regular maintenance is preferred over relying on additives

Fuel Economy

This section provides detailed information on the fuel efficiency of the 2009-2013 Infiniti G37, including city, highway, and combined MPG ratings. It also discusses factors that may affect fuel economy.

MPG Ratings
  • City: 17-19 MPG
  • Highway: 25-27 MPG
  • Combined: 20-22 MPG
  • Actual mileage may vary based on driving conditions
Factors Affecting Fuel Economy
  • Driving habits (e.g., aggressive acceleration)
  • Vehicle load and cargo weight
  • Tire pressure and condition
  • Environmental conditions (e.g., temperature, altitude)

Fuel Tank and Capacity

This section details the fuel tank specifications for the 2009-2013 Infiniti G37, including capacity, materials, and refueling tips. It also covers the fuel gauge and low-fuel warning system.

Fuel Tank Capacity
  • Total capacity: 20 gallons (75.7 liters)
  • Usable capacity: 19.5 gallons (73.8 liters)
  • Reserve capacity: 2.5 gallons (9.5 liters)
  • Fuel tank material: High-density polyethylene
Refueling Tips
  • Always turn off the engine before refueling
  • Use the correct fuel grade for optimal performance
  • Avoid overfilling the tank to prevent spillage
  • Check the fuel cap for proper sealing after refueling

Component Specifications

Overview

Type
Premium unleaded gasoline
Octane Rating
91 (recommended)
Tank Capacity
20.0 gallons (75.7 liters)
Fuel Delivery
Direct injection
Emissions Compliance
Tier 2 Bin 5
Location
Rear of vehicle, under trunk

Dimensions

Tank Length
34.5 inches (87.6 cm)
Tank Width
24.8 inches (63.0 cm)
Tank Height
12.2 inches (31.0 cm)
Filler Neck Diameter
1.5 inches (3.8 cm)
Fuel Line Diameter
0.5 inches (1.27 cm)
Fuel Pump Output
45 psi (310 kPa)
Fuel Filter Size
3.0 inches x 2.5 inches (7.6 cm x 6.4 cm)

Materials

Tank Material
High-density polyethylene
Filler Neck
Stainless steel
Fuel Lines
Nitrile rubber with steel braiding
Fuel Pump
Thermoplastic housing with stainless steel internals
Fuel Filter
Cellulose and resin composite

Features

Fuel Delivery
  • High-pressure direct injection
  • Variable pressure fuel pump
  • Returnless fuel system
  • Integrated fuel pressure sensor
Tank Design
  • Molded baffles for fuel slosh reduction
  • Integrated rollover valve
  • Internal fuel pump module
  • Dual-layer construction for leak prevention
Emissions Control
  • Evaporative emissions system
  • Charcoal canister
  • Purge control valve
  • Onboard diagnostics (OBD-II)
Safety
  • Impact-resistant tank
  • Automatic fuel shutoff
  • Flame arrestor in filler neck
  • Leak detection system
Maintenance
  • Replaceable fuel filter
  • Serviceable fuel pump
  • Drainable fuel tank
  • Accessible fuel lines

Safety Features

Crash Safety
  • Automatic fuel pump shutoff in collisions
  • Impact-resistant fuel tank
  • Rollover fuel shutoff valve
Fire Prevention
  • Flame arrestor in filler neck
  • Leak detection system
  • Sealed fuel system
Emissions Safety
  • Evaporative emissions control
  • Charcoal canister for vapor storage
  • Purge valve for vapor management

Comfort Features

Refueling
  • Easy-access fuel filler door
  • Capless fuel filler system
  • Fuel level indicator with low fuel warning
Driving
  • Smooth fuel delivery
  • Consistent fuel pressure
  • Reduced fuel slosh noise
Maintenance
  • Serviceable components
  • Clear fuel filter replacement intervals
  • Diagnostic port for fuel system checks

Accessories

Performance
  • High-flow fuel pump
  • Upgraded fuel injectors
  • Performance fuel filter
Maintenance
  • Fuel system cleaner
  • Fuel additive for octane boost
  • Fuel line repair kit
Diagnostics
  • OBD-II scanner
  • Fuel pressure tester
  • Leak detection kit

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Inspect fuel lines for leaks
  • Replace fuel filter
  • Check fuel pump operation
  • Test fuel pressure
  • Inspect evaporative emissions system
Maintenance Notes
Use only premium unleaded gasoline to maintain performance and avoid engine knocking.

Warranty

Basic Warranty
Miles: 60,000
Years: 4
Coverage: Fuel system components excluding wear items
Powertrain Warranty
Miles: 70,000
Years: 6
Coverage: Fuel pump and injectors
Emissions Warranty
Miles: 80,000
Years: 8
Coverage: Evaporative emissions system
Corrosion Warranty
Miles: Unlimited
Years: 7
Coverage: Fuel tank and filler neck

Production Details

Manufacturer
Infiniti (Nissan Motor Company)
Manufacturing Process
  • Injection molding for fuel tank
  • Robotic assembly for fuel pump module
  • Precision machining for fuel injectors
Quality Control
Pressure Testing: All fuel tanks tested for leaks
Material inspection: X-ray inspection for fuel pump internals
Performance Testing: Fuel system tested under simulated driving conditions
Sustainability Practices
  • Recyclable fuel tank materials
  • Low-emission manufacturing process
  • Eco-friendly packaging
Production Metrics
Annual Production: Approximately 50,000 units
Defect Rate: Less than 0.1%
Energy Efficiency: 20% reduction in energy use compared to previous models

Service Information for fuel Service

Maintenance and service requirements specific to the fuel system

30,000
24
  • Inspect fuel lines and connections
  • Replace fuel filter
  • Check fuel pump operation
  • Test fuel pressure
  • Inspect evaporative emissions system

Use only premium unleaded gasoline to maintain performance.

60,000
48
  • Replace fuel pump if necessary
  • Clean fuel injectors
  • Inspect fuel tank for damage
  • Check fuel filler neck and cap
  • Test evaporative emissions system

Special tools required for fuel pump replacement.

100,000
84
  • Replace fuel pump assembly
  • Replace fuel injectors
  • Inspect and clean fuel tank
  • Replace all fuel lines
  • Perform comprehensive emissions test

Major service interval; consider professional assistance.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of fuel is recommended for the 2009-2013 Infiniti G37?

The 2009-2013 Infiniti G37 requires premium unleaded gasoline with an octane rating of 91 or higher. Using lower-octane fuel may result in reduced performance, engine knocking, and potential long-term damage. The 3.7L V6 engine is designed to optimize performance and efficiency with premium fuel, ensuring smooth operation and compliance with emission standards.

Q2

What is the recommended maintenance schedule for the Infiniti G37's fuel system?

The fuel system of the Infiniti G37 should be inspected every 15,000 miles or annually. Key maintenance tasks include replacing the fuel filter every 30,000 miles, checking fuel injectors for clogs, and ensuring the fuel pump operates correctly. Regular use of fuel system cleaners can help maintain injector performance and prevent carbon buildup.

Q3

How do I replace the fuel filter on a 2009-2013 Infiniti G37?

To replace the fuel filter, first, relieve fuel system pressure by disconnecting the fuel pump fuse and running the engine until it stalls. Locate the fuel filter near the fuel tank. Disconnect the fuel lines and mounting bolts, then remove the old filter. Install the new filter, reconnect the fuel lines, and secure it with mounting bolts. Finally, reconnect the fuel pump fuse and start the engine to check for leaks.

Q4

What should I do if my Infiniti G37 experiences poor fuel economy?

Poor fuel economy in the Infiniti G37 can result from clogged fuel injectors, a dirty air filter, or improper tire pressure. Start by checking and replacing the air filter if necessary. Inspect tire pressure and adjust it to the recommended level. If issues persist, clean or replace fuel injectors and ensure the oxygen sensors and spark plugs are functioning correctly.

Q5

How can I optimize the fuel efficiency of my Infiniti G37?

To optimize fuel efficiency, use premium fuel as recommended, maintain proper tire pressure, and avoid aggressive driving. Regularly replace air filters, spark plugs, and fuel filters. Use fuel system cleaners periodically to keep injectors clean. Additionally, ensure the engine is properly tuned and avoid carrying unnecessary weight in the vehicle.

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 G37 Service Manual

Coming Soon

Comprehensive guide covering maintenance, repairs, and technical specifications for the 2009-2013 Infiniti G37.

Technical Service Bulletin: Fuel System Updates

Coming Soon

Details updates and fixes related to the fuel system for the 2009-2013 Infiniti G37, including common issues and solutions.

Infiniti G37 Parts and Accessories Catalog

Coming Soon

Catalog listing OEM and aftermarket parts and accessories for the 2009-2013 Infiniti G37, including fuel system components.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

15+ Years
Experience
500+ Guides
Guides
50+ Makes
Vehicles
1000+ Solutions
Solutions

Diagnostic

Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.

Repair

Expert in both traditional mechanical repairs and modern vehicle systems.

Additional Expertise

Documentation

Created over 500 detailed repair guides and technical documents.

Training

Conducted technical training sessions and contributed to repair databases.

Certifications & Research

Certifications

  • ASE Master Technician Certification
  • Advanced Diagnostic Specialist
  • Hybrid/Electric Vehicle Systems
  • Performance Tuning Expert

Research & Community

Actively researches emerging technologies and contributes to automotive forums.

Legal Disclaimer

Important information about using this content

Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.

General Information
The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.
Warranty & Liability

The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.

We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.

Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
  • Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
  • If you're unsure about any procedure, consult a qualified professional mechanic.
Intellectual Property
All content, including text, images, and specifications, is protected by copyright and other intellectual property laws. Any unauthorized use or reproduction is prohibited.

© 2025 Infiniti Specs. All rights reserved.