Infiniti G20 1999-2002 Fuel System Specifications
Infiniti G20 1999-2002

Infiniti G20 1999-2002 Fuel System Specifications

Explore the detailed fuel specifications for the 1999-2002 Infiniti G20, including fuel type, octane rating, tank capacity, and fuel economy. Essential for maintenance, performance, and troubleshooting.

Updated

Overview Specifications

This document provides detailed fuel specifications for the 1999-2002 Infiniti G20. It includes information on fuel type, fuel economy, tank capacity, and other related technical details. Use this guide to understand the vehicle's fuel requirements and performance metrics. The document is organized into sections for easy navigation, with quick reference tables for key specifications.

How to Use

Use the search functionality to quickly locate specific fuel-related terms or metrics. Enter keywords like 'fuel economy' or 'tank capacity' to find relevant sections.

Navigate through the document using the section titles. Each section is divided into subsections with detailed points. Use the quick reference table for a summary of key specifications.

Key Specifications

Fuel Type

Premium Unleaded (91+ octane)

Fuel Tank Capacity

16.4 gallons

City MPG

22 MPG

Highway MPG

28 MPG

Combined MPG

24 MPG

Available Specifications

Fuel Type and Requirements

This section covers the type of fuel recommended for the 1999-2002 Infiniti G20, including octane ratings and any special requirements. It also discusses the impact of using alternative fuels.

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
Alternative Fuels
  • Not compatible with E85 ethanol blends
  • Biodiesel is not recommended
  • Hybrid fuel systems are not supported
  • Use of additives should be minimal and approved by the manufacturer

Fuel Economy

This section provides detailed information on the fuel efficiency of the 1999-2002 Infiniti G20, including city, highway, and combined MPG ratings. It also discusses factors that may affect fuel economy.

MPG Ratings
  • City: 22 MPG
  • Highway: 28 MPG
  • Combined: 24 MPG
  • Based on EPA estimates for standard driving conditions
Factors Affecting Fuel Economy
  • Driving habits (aggressive driving reduces efficiency)
  • Vehicle maintenance (dirty air filters, low tire pressure)
  • Environmental conditions (cold weather, hilly terrain)
  • Load weight and aerodynamics

Fuel Tank and Capacity

This section details the fuel tank specifications for the 1999-2002 Infiniti G20, including capacity, materials, and refueling recommendations.

Tank Capacity
  • Fuel tank capacity: 16.4 gallons
  • Reserve fuel capacity: 2.5 gallons
  • Total range: Approximately 400 miles on a full tank
  • Tank material: High-density polyethylene
Refueling Tips
  • Always use the recommended fuel type
  • Avoid overfilling the tank to prevent spillage
  • Check for fuel leaks during refueling
  • Replace the fuel cap securely to maintain pressure

Component Specifications

Overview

Type
Gasoline
Octane Rating
91 (recommended)
Fuel Tank Capacity
16.9 gallons (64 liters)
Fuel Delivery
Multi-port fuel injection
Emission Standard
LEV (Low Emission Vehicle)
Fuel Economy
22 mpg city / 28 mpg highway (10.7 L/100km city / 8.4 L/100km highway)

Dimensions

Fuel Tank Length
32.5 inches (82.5 cm)
Fuel Tank Width
18.7 inches (47.5 cm)
Fuel Tank Height
10.2 inches (25.9 cm)
Fuel Line Diameter
0.375 inches (9.5 mm)
Fuel Filter Size
2.5 inches x 2 inches (6.35 cm x 5.08 cm)
Fuel Pump Pressure
43.5 psi (300 kPa)
Fuel injector Flow Rate
210 cc/min

Materials

Fuel Tank
High-density polyethylene
Fuel Lines
Nitrile rubber with steel reinforcement
Fuel Filter
Cellulose and resin composite
Fuel Pump
Thermoplastic housing with stainless steel internals
Fuel injectors
Stainless steel with Teflon seals

Features

Fuel Delivery
  • Multi-port fuel injection
  • Sequential fuel injection
  • Electronic throttle control
  • Returnless fuel system
Fuel Efficiency
  • Optimized air-fuel ratio
  • Lean burn technology
  • Variable valve timing
  • Eco driving mode
Emission Control
  • Catalytic converter
  • Evaporative emission control system
  • Oxygen sensors
  • Exhaust gas recirculation (EGR)
Safety
  • Rollover valve
  • Fuel cut-off inertia switch
  • Leak detection system
  • Impact-resistant fuel tank
Monitoring
  • On-board diagnostics (OBD-II)
  • Fuel level sensor
  • Fuel pressure sensor
  • Misfire detection system

Safety Features

Crash Safety
  • Fuel cut-off system
  • Impact-resistant fuel tank
  • Rollover valve
Fire Prevention
  • Flame arrestor in fuel filler neck
  • Heat shields around fuel lines
  • Leak detection system
Emission Safety
  • Sealed fuel system
  • Evaporative emission control
  • Catalytic converter

Comfort Features

Refueling
  • Easy-access fuel filler door
  • Automatic fuel cap release
  • Fuel level indicator with low fuel warning
Driving
  • Smooth fuel delivery
  • Consistent fuel pressure
  • Quiet fuel pump operation
Maintenance
  • Easy-to-replace fuel filter
  • Serviceable fuel injectors
  • Durable fuel lines

Accessories

Performance
  • High-flow fuel pump
  • Performance fuel injectors
  • Upgraded fuel pressure regulator
Maintenance
  • Fuel system cleaner
  • Fuel filter replacement kit
  • Fuel injector cleaning kit
Diagnostics
  • OBD-II scanner
  • Fuel pressure tester
  • Fuel system smoke tester

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Inspect fuel lines for leaks
  • Replace fuel filter
  • Clean fuel injectors
  • Check fuel pump pressure
  • Inspect fuel tank for damage
Maintenance Notes
Use only recommended fuel grade for optimal performance and longevity.

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Fuel system components excluding wear items
Powertrain
Miles: 60,000
Years: 5
Coverage: Fuel pump and injectors
Emissions
Miles: 50,000
Years: 4
Coverage: Catalytic converter and oxygen sensors
Corrosion
Miles: Unlimited
Years: 7
Coverage: Fuel tank and lines

Production Details

Manufacturer
Infiniti (Nissan Motor Co.)
Manufacturing Process
  • Injection molding for fuel tank
  • CNC machining for fuel injectors
  • Robotic assembly for fuel pump
Quality Control
Pressure Testing: Fuel lines and tank
Leak Testing: Entire fuel system
Flow Testing: Fuel injectors
Sustainability Practices
  • Recycled materials in fuel tank
  • Low-emission manufacturing
  • Eco-friendly packaging
Production Metrics
Annual Production: Approx. 50,000 units
Defect Rate: Less than 0.1%
Energy Usage: 15 kWh per unit

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 pressure
  • Inspect fuel tank for damage
  • Test fuel injector performance

Use only OEM or equivalent parts for replacements.

60,000
48
  • Clean fuel injectors
  • Inspect and replace fuel pump if necessary
  • Check fuel pressure regulator
  • Test evaporative emission system
  • Inspect fuel filler neck and cap

Perform smoke test to check for leaks.

100,000
84
  • Replace fuel pump assembly
  • Replace fuel injectors
  • Inspect and replace fuel tank if necessary
  • Flush fuel lines
  • Replace all fuel system seals

Major service requires specialized tools and equipment.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of fuel is recommended for the 1999-2002 Infiniti G20?

The 1999-2002 Infiniti G20 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. Always refer to the owner's manual for specific fuel recommendations and avoid using ethanol blends above 10% (E10) to prevent potential damage to the fuel system.

Q2

What is the recommended maintenance schedule for the fuel system?

The fuel system in the 1999-2002 Infiniti G20 requires regular maintenance to ensure optimal performance. Replace the fuel filter every 30,000 miles and inspect the fuel lines for leaks or wear. Clean the fuel injectors every 60,000 miles to prevent clogging. Additionally, check the fuel pump and pressure regulator during routine service intervals to maintain proper fuel delivery.

Q3

How do I replace the fuel filter on a 1999-2002 Infiniti G20?

To replace the fuel filter, first, relieve the fuel system pressure by disconnecting the fuel pump fuse and running the engine until it stalls. Locate the fuel filter, typically near the fuel tank. Disconnect the fuel lines using a line wrench and remove the mounting bracket. Install the new filter, ensuring proper orientation, and reconnect the fuel lines. Finally, reinstall the fuel pump fuse and start the engine to check for leaks.

Q4

What should I do if my Infiniti G20 experiences poor fuel economy?

Poor fuel economy in the 1999-2002 Infiniti G20 can result from several issues. Check for clogged fuel injectors, a dirty air filter, or a malfunctioning oxygen sensor. Ensure the tires are properly inflated and the engine is tuned correctly. If the problem persists, inspect the fuel pressure regulator and fuel pump for proper operation. Regular maintenance and using the recommended fuel type can help optimize fuel efficiency.

Q5

How can I improve the performance of my Infiniti G20's fuel system?

To enhance fuel system performance, use high-quality premium fuel and add a fuel system cleaner every 5,000 miles. Upgrade to high-flow fuel injectors and a performance fuel pump for better fuel delivery. Regularly inspect and replace the fuel filter and ensure the fuel lines are free of obstructions. Proper tuning of the engine and maintaining optimal tire pressure can also contribute to improved performance.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

1999-2002 Infiniti G20 Service Manual

Coming Soon

Comprehensive guide covering maintenance, repairs, and technical specifications for the 1999-2002 Infiniti G20.

Infiniti G20 Technical Service Bulletin (TSB)

Coming Soon

Collection of technical service bulletins addressing common issues and updates for the 1999-2002 Infiniti G20.

Infiniti G20 Parts and Accessories Catalog

Coming Soon

Detailed catalog of OEM and aftermarket parts and accessories for the 1999-2002 Infiniti G20.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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