Lexus RX 2004-2009 Fuel System Specifications
Explore detailed fuel specifications for the 2004-2009 Lexus RX, including fuel type, tank capacity, economy, and emission standards. Ideal for maintenance, repairs, and upgrades.
Overview Specifications
This document provides detailed fuel specifications for the 2004-2009 Lexus RX 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 quick reference tables for key specifications.
How to Use
Use the search function to quickly locate specific fuel-related terms or metrics. Enter keywords like 'fuel efficiency' or 'tank capacity' to find relevant sections.
Navigate through the document using the section titles and subsections. Each section is labeled clearly, and subsections provide detailed technical points for easy reference.
Key Specifications
Fuel Type
Premium Unleaded
Tank Capacity
19.2 gallons
City MPG
18 MPG
Highway MPG
24 MPG
Combined MPG
20 MPG
Available Specifications
Fuel Types and Requirements
This section outlines the types of fuel recommended for the 2004-2009 Lexus RX models. It also includes details on octane ratings and any specific fuel additives or treatments advised by the manufacturer.
Fuel Types and Requirements
This section outlines the types of fuel recommended for the 2004-2009 Lexus RX models. It also includes details on octane ratings and any specific fuel additives or treatments advised by the manufacturer.
Recommended Fuel Types
- Premium unleaded gasoline (91 octane or higher)
- Regular unleaded gasoline (87 octane) acceptable but may reduce performance
- No diesel or alternative fuels supported
- Ethanol blends up to 10% (E10) are acceptable
Fuel Additives
- Use of fuel system cleaners recommended every 10,000 miles
- Avoid additives containing methanol or silicone
- Lexus-approved additives available for optimal performance
- Consult owner's manual for specific additive recommendations
Fuel Efficiency and Economy
This section provides detailed information on the fuel efficiency of the 2004-2009 Lexus RX models. It includes city, highway, and combined MPG ratings, as well as factors affecting fuel economy.
Fuel Efficiency and Economy
This section provides detailed information on the fuel efficiency of the 2004-2009 Lexus RX models. It includes city, highway, and combined MPG ratings, as well as factors affecting fuel economy.
MPG Ratings
- City: 18 MPG
- Highway: 24 MPG
- Combined: 20 MPG
- Varies slightly between AWD and FWD models
Factors Affecting Fuel Economy
- Driving habits (aggressive driving reduces efficiency)
- Vehicle load (heavier loads decrease MPG)
- Tire pressure (under-inflated tires lower efficiency)
- Environmental conditions (cold weather reduces MPG)
Fuel Tank and Capacity
This section covers the fuel tank specifications for the 2004-2009 Lexus RX models, including tank capacity, refueling procedures, and safety precautions.
Fuel Tank and Capacity
This section covers the fuel tank specifications for the 2004-2009 Lexus RX models, including tank capacity, refueling procedures, and safety precautions.
Tank Capacity
- Fuel tank capacity: 19.2 gallons
- Reserve fuel capacity: 2.5 gallons
- Range: Approximately 384 miles on a full tank
- Low fuel warning light activates at 2.5 gallons remaining
Refueling and Safety
- Always turn off the engine before refueling
- Use the fuel door release lever located inside the vehicle
- Avoid overfilling the tank to prevent spillage
- Ensure the fuel cap is securely tightened after refueling
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Component Specifications
Overview
- Type
- Gasoline
- Configuration
- V6 engine
- Platform
- Front-engine, front-wheel drive / all-wheel drive
- Material
- High-density polyethylene (HDPE) fuel tank
- Location
- Under rear passenger seats
Dimensions
- Fuel Tank Capacity
- 19.2 gallons (72.7 liters)
- Fuel Line Diameter
- 0.375 inches (9.525 mm)
- Fuel Pump Pressure
- 50 psi (3.45 bar)
- Fuel Filter Size
- 2.5 inches x 1.5 inches (63.5 mm x 38.1 mm)
- Fuel injector Flow Rate
- 270 cc/min
- Fuel Rail Length
- 22 inches (558.8 mm)
- Fuel Tank Weight Empty
- 12.5 lbs (5.67 kg)
Materials
- Fuel Tank
- High-density polyethylene (HDPE)
- Fuel Lines
- Nylon with rubber coating
- Fuel Pump
- Stainless steel and plastic composite
- Fuel injectors
- Aluminum alloy with stainless steel nozzles
- Fuel Filter
- Cellulose and resin composite
Features
- Fuel Delivery
-
- Sequential multi-port fuel injection
- Electronic fuel pressure regulation
- Returnless fuel system
- Fuel Efficiency
-
- Variable valve timing (VVT-i)
- Optimized combustion chamber design
- Low rolling resistance tires
- Emissions Control
-
- Catalytic converter
- Evaporative emissions system
- Oxygen sensors
- Safety
-
- Rollover valve
- Fuel cut-off switch
- Impact-resistant fuel tank
- Monitoring
-
- Onboard diagnostics (OBD-II)
- Fuel level sensor
- Low fuel warning light
Safety Features
- Crash Safety
-
- Fuel cut-off system in collisions
- Reinforced fuel tank placement
- Fire Prevention
-
- Flame arrestor in fuel filler neck
- Heat shields around fuel lines
- Leak Prevention
-
- Sealed fuel system
- Pressure relief valve
Comfort Features
- Refueling
-
- Easy-access fuel filler door
- Capless fuel filler system
- Driving Range
-
- Extended range with 19.2-gallon tank
- Accurate fuel gauge
- Noise Reduction
-
- Insulated fuel pump
- Quiet fuel injectors
Accessories
- Fuel Additives
-
- Fuel system cleaner
- Octane booster
- Fuel stabilizer
- Replacement Parts
-
- Fuel filter
- Fuel pump assembly
- Fuel injectors
- Tools
-
- Fuel pressure tester
- Fuel line disconnect tool
- Fuel injector cleaner kit
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect fuel lines for leaks
- Replace fuel filter
- Check fuel pump pressure
- Clean fuel injectors
- Inspect fuel tank for damage
- Maintenance Notes
- Use only premium unleaded gasoline (91 octane or higher) for optimal performance.
Warranty
- Basic Warranty
- Miles: 50,000Years: 4Coverage: Fuel system components
- Powertrain Warranty
- Miles: 70,000Years: 6Coverage: Fuel pump and injectors
- Emissions Warranty
- Miles: 80,000Years: 8Coverage: Catalytic converter and oxygen sensors
- Corrosion Warranty
- Miles: UnlimitedYears: 5Coverage: Fuel tank and lines
Production Details
- Manufacturer
- Toyota Motor Corporation
- Manufacturing Process
-
- Injection molding for fuel tank
- Precision machining for fuel injectors
- Automated assembly for fuel pump
- Quality Control
- Pressure Testing: Fuel tank and lines tested at 2x operating pressureLeak Testing: Full system leak detectionPerformance Testing: Fuel injectors flow-tested
- Sustainability Practices
-
- Recyclable fuel tank materials
- Low-emission manufacturing process
- Energy-efficient production facilities
- Production Metrics
- Annual Production: 150,000 unitsDefect Rate: 0.01%Energy Usage: 15 kWh per unit
Service Information for fuel Service
Maintenance and service requirements specific to the fuel system
- Inspect fuel lines and connections
- Replace fuel filter
- Check fuel pump pressure
- Test fuel injector performance
- Inspect fuel tank for damage
Use only manufacturer-approved fuel system cleaners.
- Replace fuel pump assembly
- Clean fuel injectors
- Inspect and replace fuel lines if necessary
- Check fuel pressure regulator
- Test evaporative emissions system
Specialized tools required for fuel pump replacement.
- Replace fuel injectors
- Inspect and replace fuel tank if necessary
- Test catalytic converter efficiency
- Check oxygen sensor performance
- Perform full fuel system diagnostic
Major service interval requires professional equipment and expertise.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of fuel is recommended for the 2004-2009 Lexus RX?
What type of fuel is recommended for the 2004-2009 Lexus RX?
The 2004-2009 Lexus RX models are designed to run on premium unleaded gasoline with an octane rating of 91 or higher. While the vehicle can operate on regular unleaded gasoline (87 octane), using premium fuel ensures optimal performance, fuel efficiency, and engine longevity. Always refer to the owner's manual for specific fuel recommendations and avoid using fuels with ethanol content exceeding 10% to prevent potential engine damage.
Q2 What is the recommended maintenance schedule for the Lexus RX fuel system?
What is the recommended maintenance schedule for the Lexus RX fuel system?
The Lexus RX fuel system requires regular maintenance to ensure optimal performance. Key tasks include inspecting and replacing the fuel filter every 30,000-40,000 miles, checking fuel injectors for clogs or leaks, and using fuel system cleaners every 15,000 miles to prevent carbon buildup. Additionally, monitor the fuel pump and fuel lines for wear or damage during routine service intervals. Always follow the maintenance schedule outlined in the owner's manual.
Q3 How do I replace the fuel filter on a 2004-2009 Lexus RX?
How do I replace the fuel filter on a 2004-2009 Lexus RX?
To replace the fuel filter on a 2004-2009 Lexus RX, 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 and remove the old filter. 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. Always consult the service manual for detailed instructions.
Q4 What should I do if my Lexus RX is experiencing poor fuel efficiency?
What should I do if my Lexus RX is experiencing poor fuel efficiency?
If your Lexus RX is experiencing poor fuel efficiency, start by checking for common issues such as a dirty air filter, clogged fuel injectors, or low tire pressure. Inspect the oxygen sensors and spark plugs for wear, as these can significantly impact fuel economy. Additionally, ensure you are using the recommended fuel type and avoid excessive idling or aggressive driving. If the issue persists, consult a certified technician for a diagnostic scan.
Q5 How can I optimize the fuel performance of my Lexus RX?
How can I optimize the fuel performance of my Lexus RX?
To optimize fuel performance, use premium unleaded gasoline and maintain a regular maintenance schedule. Keep the air filter clean, ensure proper tire inflation, and replace worn spark plugs and oxygen sensors. Avoid carrying unnecessary weight and use cruise control on highways to maintain consistent speeds. Regularly clean the fuel injectors and consider using a fuel system cleaner to remove carbon deposits. These steps will help maximize fuel efficiency and engine 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.
2004-2009 Lexus RX Service Manual
Coming SoonComprehensive guide covering maintenance, repairs, and technical specifications for the 2004-2009 Lexus RX models.
Technical Service Bulletin: Fuel System Updates
Coming SoonDetails updates and fixes related to the fuel system for 2004-2009 Lexus RX models, including common issues and solutions.
Lexus RX Parts and Accessories Catalog
Coming SoonOfficial catalog listing genuine parts and accessories for the 2004-2009 Lexus RX, including fuel system components.
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Technical Information
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