Lexus IS 2006-2013 Fuel System Specifications
Lexus IS 2006-2013

Lexus IS 2006-2013 Fuel System Specifications

Explore the detailed fuel specifications for the 2006-2013 Lexus IS, including fuel type, octane rating, tank capacity, and economy. Essential for maintenance, performance, and efficiency.

Updated

Overview Specifications

This document provides detailed fuel specifications for the 2006-2013 Lexus IS models. It includes information on fuel types, efficiency, tank capacity, and related technical details. Use this guide to understand the fuel requirements and performance metrics of your vehicle. The document is organized into sections for easy navigation, with a quick reference table for key specifications.

How to Use

Use the search functionality to quickly locate specific fuel-related terms or specifications. Enter keywords like 'fuel type' or 'tank capacity' to find 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

17.1 gallons

City MPG

18-21 MPG

Highway MPG

26-30 MPG

Combined MPG

22-24 MPG

Available Specifications

Fuel Types and Requirements

This section outlines the types of fuel recommended for the 2006-2013 Lexus IS models, including octane ratings and any specific requirements for optimal performance.

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
  • Ethanol blends up to 10% (E10) are acceptable
  • Avoid using diesel or other incompatible fuels
Fuel Additives
  • Use of fuel system cleaners is optional but recommended periodically
  • Avoid additives containing methanol or silicone
  • Lexus-approved additives can enhance performance and fuel efficiency

Fuel Efficiency and Economy

This section provides details on the fuel efficiency of the 2006-2013 Lexus IS models, including EPA estimates and factors affecting mileage.

EPA Fuel Economy Estimates
  • City: 18-21 MPG
  • Highway: 26-30 MPG
  • Combined: 22-24 MPG
  • Varies slightly between IS 250 and IS 350 models
Factors Affecting Fuel Economy
  • Driving habits (aggressive driving reduces efficiency)
  • Vehicle maintenance (clean air filters, proper tire pressure)
  • Environmental conditions (cold weather, hilly terrain)
  • Use of air conditioning or other accessories

Fuel Tank and Capacity

This section covers the fuel tank specifications, including capacity, materials, and refueling tips for the 2006-2013 Lexus IS models.

Fuel Tank Capacity
  • Total capacity: 17.1 gallons (64.7 liters)
  • Reserve capacity: Approximately 2.5 gallons (9.5 liters)
  • Material: High-density polyethylene for durability
  • Designed for minimal fuel evaporation
Refueling Tips
  • Turn off the engine before refueling
  • Use the recommended fuel type for best results
  • Avoid overfilling the tank to prevent spillage
  • Check the fuel cap for proper sealing after refueling

Component Specifications

Overview

Type
Gasoline
Octane Rating
91 (recommended)
Fuel System
Sequential Multi-Port Fuel Injection
Tank Capacity
17.1 gallons (64.7 liters)
Fuel Economy
18 city / 25 highway mpg (13.1 / 9.4 L/100km)
Emissions Standard
ULEV-II

Dimensions

Tank Length
42.5 inches (108 cm)
Tank Width
24.8 inches (63 cm)
Tank Height
12.6 inches (32 cm)
Filler Neck Diameter
1.5 inches (3.8 cm)
Fuel Line Diameter
0.375 inches (9.5 mm)
Fuel Pump Output
45 psi (310 kPa)
Fuel Filter Size
2.5 inches x 1.5 inches (6.4 cm x 3.8 cm)

Materials

Tank Material
High-density polyethylene
Fuel Lines
Nylon with rubber coating
Filler Neck
Stainless steel
Fuel Pump
Thermoplastic housing with metal internals
Fuel Filter
Cellulose media with metal casing

Features

Fuel Delivery
  • Sequential fuel injection
  • Electronic throttle control
  • Variable fuel pressure regulation
Monitoring
  • Fuel level sensor
  • Low fuel warning light
  • Real-time fuel economy display
Safety
  • Rollover valve
  • Evaporative emissions control
  • Fuel cut-off in crash detection
Efficiency
  • Eco driving mode
  • Idle stop system (hybrid models)
  • Optimized fuel injector spray pattern

Safety Features

Crash Safety
  • Automatic fuel pump shutoff
  • Reinforced fuel tank placement
  • Impact-resistant fuel lines
Fire Prevention
  • Flame arrestor in filler neck
  • Thermal protection for fuel lines
  • Vapor recovery system
Environmental
  • Sealed fuel system
  • Onboard diagnostics for emissions
  • Zero evaporative emissions design

Comfort Features

Refueling
  • Capless fuel filler
  • Easy-access fuel door
  • Fuel level accuracy within 1%
Driving
  • Smooth throttle response
  • Consistent fuel delivery
  • Quiet fuel pump operation
Maintenance
  • Long-life fuel filter
  • Easy-access fuel pump
  • Durable fuel tank design

Accessories

Performance
  • High-flow fuel pump
  • Aftermarket fuel injectors
  • Fuel pressure regulator
Maintenance
  • Fuel system cleaner
  • Replacement fuel filter
  • Fuel line repair kit
Monitoring
  • Fuel economy gauge
  • Fuel pressure tester
  • Diagnostic scan tool

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 operation
  • Test fuel pressure
Maintenance Notes
Use only recommended fuel grade for optimal performance

Warranty

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

Production Details

Manufacturer
Denso Corporation
Manufacturing Process
  • Injection molding for fuel tank
  • Precision machining for fuel injectors
  • Automated assembly for fuel pump
Quality Control
Pressure Testing: 100% of fuel tanks
Leak Testing: All fuel system components
Performance Validation: Random sampling
Sustainability
  • Recycled materials in fuel tank
  • Low-emission manufacturing
  • Energy-efficient production lines
Production Metrics
Annual Output: 500,000 units
Defect Rate: 0.01%
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
  • Check fuel filter condition
  • Test fuel pressure
  • Inspect fuel tank for damage
  • Clean fuel injectors

Use only manufacturer-approved fuel system cleaners

60,000
48
  • Replace fuel filter
  • Inspect fuel pump operation
  • Check evaporative emissions system
  • Test fuel pressure regulator
  • Inspect fuel tank straps

Fuel filter replacement requires special tools

120,000
96
  • Replace fuel pump assembly
  • Inspect and clean fuel tank
  • Replace fuel injectors
  • Test complete fuel system
  • Inspect and replace fuel lines if necessary

Major service requires fuel system depressurization

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of fuel is recommended for the 2006-2013 Lexus IS?

The 2006-2013 Lexus IS 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 requirements and compatibility details.

Q2

What are the maintenance requirements for the fuel system in a Lexus IS?

Regular maintenance for the fuel system includes inspecting and replacing the fuel filter every 30,000-40,000 miles, checking fuel injectors for clogs, and ensuring the fuel pump operates correctly. Additionally, use fuel system cleaners periodically to maintain optimal performance. Follow the maintenance schedule in the owner's manual for detailed intervals.

Q3

How do I replace the fuel filter in a 2006-2013 Lexus IS?

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, typically near the fuel tank. 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 precise instructions.

Q4

What should I do if my Lexus IS has poor fuel economy?

Poor fuel economy can result from clogged fuel injectors, a dirty air filter, or improper tire pressure. Start by checking and replacing the air filter, ensuring tires are inflated to the recommended pressure, and using a fuel injector cleaner. If issues persist, inspect the oxygen sensors and fuel system components for faults.

Q5

How can I optimize fuel performance in my Lexus IS?

To optimize fuel performance, use premium unleaded gasoline, maintain proper tire pressure, and avoid aggressive driving. Regularly replace air filters and fuel filters, and ensure the engine is tuned correctly. Using fuel additives periodically can also help keep the fuel system clean and efficient.

Factory Service Resources

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

2006-2013 Lexus IS Owner's Manual

Coming Soon

Comprehensive guide covering vehicle operation, maintenance schedules, and technical specifications for the Lexus IS models from 2006 to 2013.

Lexus IS Fuel System Technical Service Bulletin

Coming Soon

Technical bulletin addressing common fuel system issues, updates, and recommended solutions for 2006-2013 Lexus IS models.

Lexus IS Genuine Parts and Accessories Catalog

Coming Soon

Catalog listing genuine Lexus parts and accessories compatible with 2006-2013 IS models, including fuel system components.

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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