Subaru Subaru Impreza 2007-2011 Fuel System Specifications
Explore detailed fuel specifications for the 2007-2011 Subaru Impreza, including fuel type, octane rating, and tank capacity. Ideal for maintenance, troubleshooting, and performance upgrades.
Overview Specifications
This document provides detailed fuel specifications for the 2007-2011 Subaru Impreza. It includes information on fuel types, efficiency, tank capacity, and other related technical details. Use this guide to understand the fuel requirements and performance metrics of the 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 find specific terms or phrases within the document. Enter keywords related to fuel specifications, such as 'octane rating' or 'fuel economy,' to quickly locate relevant information.
Navigate through the document using the section titles and subsections. Each major section focuses on a specific aspect of fuel specifications, with detailed points listed under each subsection.
Key Specifications
Fuel Type
87 Octane (Minimum)
Fuel Tank Capacity
16.9 Gallons
City MPG
20-22 MPG
Highway MPG
27-29 MPG
Combined MPG
23-25 MPG
Available Specifications
Fuel Types and Requirements
This section outlines the types of fuel suitable for the 2007-2011 Subaru Impreza, including octane ratings and any special requirements. It also covers the impact of fuel choice on engine performance and longevity.
Fuel Types and Requirements
This section outlines the types of fuel suitable for the 2007-2011 Subaru Impreza, including octane ratings and any special requirements. It also covers the impact of fuel choice on engine performance and longevity.
Recommended Fuel Type
- Regular unleaded gasoline with an octane rating of 87 or higher
- Premium gasoline (91 octane or higher) recommended for optimal performance
- Avoid using diesel or ethanol blends above 10% (E10)
- Using lower octane fuel may result in reduced engine performance
Fuel Additives
- Subaru recommends against using fuel additives unless specified
- Additives may void warranty if they cause engine damage
- Use only Subaru-approved fuel system cleaners if necessary
- Avoid using leaded gasoline or other prohibited additives
Fuel Efficiency and Economy
This section provides details on the fuel efficiency of the 2007-2011 Subaru Impreza, including EPA-estimated mileage and factors affecting fuel economy. It also offers tips for improving fuel efficiency.
Fuel Efficiency and Economy
This section provides details on the fuel efficiency of the 2007-2011 Subaru Impreza, including EPA-estimated mileage and factors affecting fuel economy. It also offers tips for improving fuel efficiency.
EPA-Estimated Mileage
- City: 20-22 MPG
- Highway: 27-29 MPG
- Combined: 23-25 MPG
- Actual mileage may vary based on driving conditions
Factors Affecting Fuel Economy
- Driving habits (e.g., aggressive acceleration reduces efficiency)
- Vehicle load (carrying heavy items decreases MPG)
- Tire pressure (underinflated tires increase fuel consumption)
- Environmental conditions (cold weather reduces efficiency)
Fuel Tank and Capacity
This section covers the fuel tank specifications for the 2007-2011 Subaru Impreza, including tank capacity, refueling procedures, and safety precautions.
Fuel Tank and Capacity
This section covers the fuel tank specifications for the 2007-2011 Subaru Impreza, including tank capacity, refueling procedures, and safety precautions.
Fuel Tank Capacity
- Standard fuel tank capacity: 16.9 gallons (64 liters)
- Reserve fuel capacity: approximately 2.5 gallons (9.5 liters)
- Fuel gauge indicates remaining fuel level
- Low fuel warning light activates when reserve is reached
Refueling Tips
- Turn off the engine before refueling
- Use the correct fuel grade as specified in the owner's manual
- 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
- Multi-port fuel injection
- Platform
- Subaru EJ series engine
- Material
- High-density polyethylene (HDPE) fuel tank
- Location
- Rear underbody
Dimensions
- Fuel Tank Capacity
- 16.9 gallons (64 liters)
- Fuel Tank Length
- 32.5 inches (82.5 cm)
- Fuel Tank Width
- 22.8 inches (58 cm)
- Fuel Tank Height
- 10.2 inches (26 cm)
- Fuel Line Diameter
- 0.375 inches (9.5 mm)
- Fuel Pump Pressure
- 43.5 psi (300 kPa)
- Fuel Filter Size
- 3.15 x 2.36 inches (80 x 60 mm)
Materials
- Fuel Tank
- High-density polyethylene (HDPE)
- Fuel Lines
- Nylon with rubber coating
- Fuel Pump
- Stainless steel and plastic composite
- Fuel Filter
- Cellulose and resin composite
Features
- Fuel Delivery
-
- Multi-port fuel injection
- Sequential fuel delivery
- Variable fuel pressure regulation
- Fuel Tank
-
- Molded HDPE construction
- Integrated baffles for slosh reduction
- Internal fuel pump assembly
- Rollover safety valve
- Emissions Control
-
- Evaporative emissions system
- Charcoal canister
- Purge control solenoid
- Oxygen sensor feedback
- Fuel Quality
-
- 87 octane minimum requirement
- Ethanol compatibility up to E10
- Water separation system
- Monitoring
-
- Fuel level sensor
- Low fuel warning light
- Fuel consumption display
Safety Features
- Crash Safety
-
- Automatic fuel shutoff
- Impact-resistant fuel tank
- Rollover valve
- Fire Prevention
-
- Flame arrestor in fuel filler neck
- Fuel line quick-disconnect fittings
- Heat shields around fuel components
Comfort Features
- Refueling
-
- Easy-access fuel filler door
- Capless fuel filler system
- Fuel gauge accuracy within 3%
- Driving
-
- Smooth fuel delivery
- Quiet fuel pump operation
- Consistent fuel pressure
Accessories
- Performance
-
- High-flow fuel pump
- Aftermarket fuel pressure regulator
- Upgraded fuel injectors
- Maintenance
-
- Fuel system cleaner
- Fuel filter replacement kit
- Fuel line repair kit
- Diagnostics
-
- Fuel pressure tester
- Fuel system scan tool
- Fuel composition analyzer
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 fuel tank for damage
- Maintenance Notes
- Use only recommended fuel additives and cleaners
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Fuel pump and fuel delivery system
- Powertrain
- Miles: 60,000Years: 5Coverage: Fuel system components
- Emissions
- Miles: 80,000Years: 8Coverage: Evaporative emissions system
- Corrosion
- Miles: UnlimitedYears: 5Coverage: Fuel tank corrosion
Production Details
- Manufacturer
- Subaru Corporation
- Manufacturing Process
-
- Injection molding for fuel tank
- Robotic assembly for fuel pump
- Automated testing of fuel system components
- Quality Control
- Pressure Testing: 100% of fuel tanksLeak Testing: 100% of fuel systemsPerformance Testing: Sample testing of fuel pumps
- Sustainability Practices
-
- Recycled HDPE in fuel tank production
- Low-VOC fuel system components
- Recycling program for used fuel filters
- Production Metrics
- Annual Production: 500,000 unitsDefect Rate: 0.02%Energy Efficiency: 15% improvement since 2007
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 operation
- Test fuel pressure
- Inspect fuel tank for damage
Use only Subaru-approved fuel system cleaners
- Complete fuel system inspection
- Test evaporative emissions system
- Check fuel injector performance
- Inspect fuel tank mounting hardware
- Verify fuel gauge accuracy
Special diagnostic tools required for emissions testing
- Replace fuel pump assembly
- Inspect and clean fuel injectors
- Replace all fuel line O-rings
- Test fuel pressure regulator
- Perform complete system pressure test
Consider replacing fuel filter even if not yet due
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of fuel is recommended for the 2007-2011 Subaru Impreza?
What type of fuel is recommended for the 2007-2011 Subaru Impreza?
The 2007-2011 Subaru Impreza is designed to run on unleaded gasoline with an octane rating of 87 or higher. Using lower-octane fuel may result in reduced performance and engine knocking. For optimal performance, Subaru recommends using top-tier detergent gasoline to maintain engine cleanliness and efficiency. Avoid using diesel or E85 ethanol blends, as they are not compatible with the Impreza's fuel system.
Q2 What is the recommended maintenance schedule for the fuel system?
What is the recommended maintenance schedule for the fuel system?
The fuel system for the 2007-2011 Subaru Impreza requires regular maintenance to ensure optimal performance. Replace the fuel filter every 30,000 miles or as specified in the owner's manual. Inspect fuel lines and connections for leaks or damage during routine service. Use fuel system cleaner additives every 15,000 miles to prevent carbon buildup. Always follow the manufacturer's maintenance schedule for fuel injector cleaning and other related services.
Q3 How do I replace the fuel filter on a 2007-2011 Subaru Impreza?
How do I replace the fuel filter on a 2007-2011 Subaru Impreza?
To replace the fuel filter, first, relieve the fuel system pressure by removing 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 disconnect tool. Remove the mounting bolts and old filter. Install the new filter, reconnect the fuel lines, and secure the mounting bolts. Reinstall the fuel pump fuse and start the engine to check for leaks.
Q4 What should I do if my Subaru Impreza has poor fuel economy?
What should I do if my Subaru Impreza has poor fuel economy?
Poor fuel economy in the 2007-2011 Subaru Impreza can result from several issues. Check for clogged air filters, faulty oxygen sensors, or dirty fuel injectors. Ensure proper tire pressure and alignment. Inspect the fuel system for leaks or damaged components. Use a fuel system cleaner to remove deposits. If the issue persists, consult a professional mechanic for a diagnostic scan to identify potential engine or transmission problems.
Q5 How can I optimize the fuel efficiency of my Subaru Impreza?
How can I optimize the fuel efficiency of my Subaru Impreza?
To optimize fuel efficiency, maintain proper tire pressure and alignment. Use the recommended octane fuel and avoid aggressive driving habits. Regularly replace air filters and spark plugs. Keep the fuel system clean by using top-tier gasoline and fuel system cleaners. Reduce vehicle weight by removing unnecessary items. Follow the manufacturer's maintenance schedule for timely servicing of the engine and transmission systems.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2007-2011 Subaru Impreza Service Manual
Coming SoonComprehensive guide covering maintenance, repair, and technical specifications for the 2007-2011 Subaru Impreza.
Subaru Technical Service Bulletin: Fuel System Updates
Coming SoonDetails updates and fixes for common fuel system issues in the 2007-2011 Subaru Impreza.
Subaru Impreza Parts and Accessories Catalog
Coming SoonCatalog listing OEM and aftermarket parts and accessories for the 2007-2011 Subaru Impreza.
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