Lexus GS 2012-2020 Fuel System Specifications
Lexus GS 2012-2020

Lexus GS 2012-2020 Fuel System Specifications

Explore detailed fuel specifications for the 2012-2020 Lexus GS, including fuel type, tank capacity, economy, and emissions. Essential for maintenance, troubleshooting, and performance upgrades.

Updated

Overview Specifications

This document provides detailed fuel specifications for the 2012-2020 Lexus GS models. It includes information on fuel types, efficiency, tank capacity, and performance metrics. Use this guide to understand the fuel-related features of the Lexus GS and make informed decisions. The document is organized into sections for easy navigation, with a quick reference table for key specifications.

How to Use

Use the search bar to find specific terms or phrases related to fuel specifications. Keywords like 'fuel efficiency' or 'tank capacity' will yield relevant results.

Scroll through the sections to explore different aspects of fuel specifications. Click on section titles to expand or collapse details for easier reading.

Key Specifications

Fuel Type

Gasoline/Hybrid

Tank Capacity

17.2-17.4 gallons

City MPG

19-31 MPG

Highway MPG

28-36 MPG

Estimated Range

400-550 miles

Available Specifications

Fuel Types and Compatibility

This section covers the types of fuel recommended for the 2012-2020 Lexus GS models, including gasoline and hybrid options. It also explains the compatibility of different fuel grades and their impact on performance.

Recommended Fuel Types
  • Regular unleaded gasoline (87 octane) for non-hybrid models
  • Premium unleaded gasoline (91 octane or higher) for optimal performance
  • Hybrid models use a combination of gasoline and electric power
  • Ethanol blends up to E10 are compatible
  • Avoid diesel or other incompatible fuel types
Fuel Grade Impact
  • Higher octane fuels improve engine performance and efficiency
  • Lower octane fuels may reduce power output and fuel economy
  • Hybrid models prioritize electric power for city driving
  • Fuel additives are not required but can be used for maintenance

Fuel Efficiency and Economy

This section provides detailed information on the fuel efficiency of the Lexus GS models, including city, highway, and combined MPG ratings. It also discusses factors that influence fuel economy.

MPG Ratings
  • Non-hybrid models: 19-22 MPG city, 28-32 MPG highway
  • Hybrid models: 29-31 MPG city, 34-36 MPG highway
  • Combined MPG ranges from 24-33 depending on the model
  • Eco mode improves fuel efficiency by optimizing performance
Factors Affecting Fuel Economy
  • Driving habits (aggressive driving reduces efficiency)
  • Terrain and road conditions (hilly areas lower MPG)
  • Vehicle maintenance (clean air filters improve efficiency)
  • Tire pressure (underinflated tires increase fuel consumption)

Fuel Tank Capacity and Range

This section outlines the fuel tank capacity of the Lexus GS models and the estimated driving range based on fuel efficiency. It also includes tips for maximizing range.

Tank Capacity and Range
  • Fuel tank capacity: 17.4 gallons for non-hybrid models
  • Hybrid models have a slightly smaller tank at 17.2 gallons
  • Estimated range: 400-550 miles on a full tank
  • Range varies based on driving conditions and fuel efficiency
Maximizing Driving Range
  • Use cruise control on highways to maintain consistent speed
  • Avoid excessive idling to conserve fuel
  • Plan routes to minimize stop-and-go traffic
  • Remove unnecessary weight from the vehicle

Component Specifications

Overview

Type
Gasoline
Configuration
Direct Injection
Platform
Lexus GS 2012-2020
Material
High-grade steel and aluminum
Location
Under rear seat

Dimensions

Tank Capacity
17.4 gallons (65.8 liters)
Fuel Line Diameter
0.5 inches (12.7 mm)
Fuel Pump Pressure
58 psi (400 kPa)
Fuel Filter Size
4.5 inches x 2.5 inches (114 mm x 63.5 mm)
Fuel injector Flow Rate
300 cc/min
Fuel Rail Length
24 inches (610 mm)
Fuel Tank Weight
22 lbs (10 kg) when empty

Materials

Fuel Tank
High-density polyethylene
Fuel Lines
Nitrile rubber with steel braiding
Fuel Pump
Stainless steel and plastic composite
Fuel injectors
Aluminum alloy with ceramic tips
Fuel Rail
Forged aluminum

Features

Fuel Delivery
  • Direct injection system
  • Variable pressure fuel pump
  • Sequential multi-port injection
  • Electronic throttle control
Emission Control
  • Evaporative emission control system
  • Catalytic converter
  • Oxygen sensors
  • Onboard diagnostics (OBD-II)
Fuel Efficiency
  • Eco mode
  • Start-stop system
  • Aerodynamic fuel tank design
  • Lightweight fuel components
Safety
  • Fuel cut-off switch
  • Impact-resistant fuel tank
  • Leak detection system
  • Overflow prevention valve
Monitoring
  • Fuel level sensor
  • Fuel pressure sensor
  • Fuel temperature sensor
  • Real-time fuel consumption display

Safety Features

Crash Safety
  • Automatic fuel shut-off in collisions
  • Reinforced fuel tank housing
Fire Prevention
  • Flame arrestor in fuel filler neck
  • Heat shields around fuel lines
Leak Prevention
  • Double-walled fuel tank
  • Sealed fuel system

Comfort Features

Refueling
  • Capless fuel filler
  • Easy-access fuel door
  • Fuel level indicator on dashboard
Noise Reduction
  • Quiet fuel pump operation
  • Vibration-dampened fuel lines
Convenience
  • Low fuel warning light
  • Estimated range display
  • Fuel economy history

Accessories

Fuel Additives
  • Fuel system cleaner
  • Octane booster
  • Fuel stabilizer
Maintenance Tools
  • Fuel pressure tester
  • Fuel line disconnect tool
  • Fuel injector cleaner
Upgrades
  • High-performance fuel pump
  • Aftermarket fuel injectors
  • Upgraded fuel rail

Maintenance

Service interval
Every 10,000 miles or 12 months
Service Items
  • Inspect fuel lines for leaks
  • Check fuel pump operation
  • Replace fuel filter
  • Clean fuel injectors
  • Test fuel pressure
Maintenance Notes
Use only premium unleaded gasoline (91 octane or higher)

Warranty

Basic Warranty
Miles: 50,000
Years: 4
Coverage: Fuel system components
Powertrain Warranty
Miles: 70,000
Years: 6
Coverage: Fuel pump and injectors
Emissions Warranty
Miles: 80,000
Years: 8
Coverage: Fuel system emissions components
Corrosion Warranty
Miles: Unlimited
Years: 6
Coverage: Fuel tank corrosion

Production Details

Manufacturer
Denso Corporation
Manufacturing Process
  • Injection molding for fuel tank
  • CNC machining for fuel rails
  • Precision assembly for fuel injectors
Quality Control
Pressure Testing: All fuel components pressure tested
Leak Testing: Fuel system leak tested
Durability Testing: Simulated 10-year lifespan testing
Sustainability Practices
  • Recycled materials in fuel tank
  • Low-emission manufacturing process
  • Energy-efficient production facilities
Production Metrics
Annual Production: 500,000 units
Defect Rate: 0.01%
Energy Consumption: 5 kWh per unit

Service Information for fuel Service

Maintenance and service requirements specific to the fuel system

10,000
12
  • Inspect fuel lines and connections
  • Check fuel pump operation
  • Test fuel pressure
  • Inspect fuel tank for damage
  • Check fuel filler neck and cap

Use only manufacturer-approved fuel system cleaners

30,000
36
  • Replace fuel filter
  • Clean fuel injectors
  • Inspect fuel rail for leaks
  • Check fuel level sensor accuracy
  • Test evaporative emission system

Special tools required for fuel filter replacement

60,000
72
  • Replace fuel pump if necessary
  • Inspect and clean fuel tank
  • Check all fuel system hoses
  • Test fuel pressure regulator
  • Perform complete fuel system diagnostic

Fuel tank inspection requires special equipment

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of fuel is recommended for the 2012-2020 Lexus GS?

The 2012-2020 Lexus GS models are 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 fuel efficiency. Always refer to the owner's manual for specific fuel recommendations and compatibility details to ensure optimal engine performance and longevity.

Q2

What are the maintenance requirements for the fuel system in the Lexus GS?

The fuel system in the 2012-2020 Lexus GS requires regular maintenance, including fuel filter replacement every 30,000-40,000 miles and periodic fuel injector cleaning. Additionally, using high-quality fuel additives can help maintain fuel system efficiency. Always follow the maintenance schedule outlined in the owner's manual to prevent issues such as clogged injectors or reduced fuel economy.

Q3

How do I replace the fuel filter in a 2012-2020 Lexus GS?

To replace the fuel filter in a 2012-2020 Lexus GS, first, locate the fuel filter, typically near the fuel tank. Depressurize the fuel system 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 restore fuel system pressure. Always consult the service manual for detailed instructions and safety precautions.

Q4

What should I do if my Lexus GS experiences fuel-related issues?

If your Lexus GS experiences fuel-related issues such as poor performance, stalling, or difficulty starting, first check the fuel level and quality. Inspect the fuel filter, fuel pump, and injectors for clogs or damage. Use a diagnostic tool to check for error codes related to the fuel system. If issues persist, consult a certified technician for further diagnosis and repair.

Q5

How can I optimize fuel efficiency in my Lexus GS?

To optimize fuel efficiency in your 2012-2020 Lexus GS, use premium unleaded gasoline, maintain proper tire pressure, and avoid aggressive driving. Regularly service the fuel system, including cleaning injectors and replacing filters. Utilize the Eco driving mode if available, and remove unnecessary weight from the vehicle. These practices can help improve mileage and reduce fuel consumption.

Factory Service Resources

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

2012-2020 Lexus GS Owner's Manual

Coming Soon

Comprehensive guide covering vehicle operation, maintenance schedules, and fuel system specifications for the 2012-2020 Lexus GS.

Lexus GS Fuel System Technical Bulletin

Coming Soon

Technical service bulletin addressing common fuel system issues and recommended solutions for the 2012-2020 Lexus GS models.

Lexus GS Genuine Parts Catalog

Coming Soon

Catalog of genuine Lexus parts and accessories, including fuel system components, for the 2012-2020 Lexus GS.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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