Subaru Subaru Impreza 2011-2016 Fuel System Specifications
Explore the fuel specifications for the 2011-2016 Subaru Impreza, including fuel type, octane rating, fuel system details, and fuel economy. This guide is essential for maintenance, performance optimization, and troubleshooting.
Overview Specifications
This document provides detailed fuel specifications for the 2011-2016 Subaru Impreza. It includes information on fuel types, efficiency, tank capacity, and 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 a quick reference table for key specifications.
How to Use
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Key Specifications
Fuel Type
87 Octane (Regular Unleaded)
Fuel Tank Capacity
14.5 gallons
City MPG
27-28 MPG
Highway MPG
36-37 MPG
Combined MPG
30-32 MPG
Available Specifications
Fuel Types and Requirements
This section covers the types of fuel recommended for the 2011-2016 Subaru Impreza, including octane ratings and any specific requirements for optimal performance.
Fuel Types and Requirements
This section covers the types of fuel recommended for the 2011-2016 Subaru Impreza, including octane ratings and any specific requirements for optimal performance.
Recommended Fuel Type
- Regular unleaded gasoline with an octane rating of 87 or higher
- Premium fuel not required but can enhance performance
- Avoid using diesel or ethanol blends above 10%
- Use of fuel additives is not recommended
Fuel System Specifications
- Sequential multi-port fuel injection system
- Fuel tank material: High-density polyethylene
- Fuel pump type: Electric, in-tank design
- Fuel filter integrated into the fuel pump module
Fuel Efficiency and Economy
This section provides details on the fuel efficiency of the 2011-2016 Subaru Impreza, including EPA-estimated mileage and factors affecting fuel economy.
Fuel Efficiency and Economy
This section provides details on the fuel efficiency of the 2011-2016 Subaru Impreza, including EPA-estimated mileage and factors affecting fuel economy.
EPA-Estimated Mileage
- City: 27-28 MPG
- Highway: 36-37 MPG
- Combined: 30-32 MPG
- Varies slightly between manual and automatic transmissions
Factors Affecting Fuel Economy
- Driving habits and conditions
- Tire pressure and alignment
- Vehicle load and cargo weight
- Use of air conditioning and other accessories
Fuel Tank and Capacity
This section outlines the fuel tank specifications for the 2011-2016 Subaru Impreza, including capacity, materials, and safety features.
Fuel Tank and Capacity
This section outlines the fuel tank specifications for the 2011-2016 Subaru Impreza, including capacity, materials, and safety features.
Fuel Tank Capacity
- Total capacity: 14.5 gallons (55 liters)
- Usable capacity: 13.2 gallons (50 liters)
- Reserve fuel capacity: 1.3 gallons (5 liters)
- Low fuel warning light activates at approximately 2.6 gallons (10 liters) remaining
Fuel Tank Safety Features
- Rollover valve to prevent fuel spillage
- Impact-resistant fuel tank design
- Vapor recovery system to minimize emissions
- Automatic fuel shutoff in case of collision
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Component Specifications
Overview
- Type
- Gasoline
- Configuration
- Direct Injection
- Platform
- FB Series Engine
- Material
- Aluminum Alloy
- Location
- Front Engine
Dimensions
- Fuel Tank Capacity
- 14.5 gallons (54.9 liters)
- Fuel Line Diameter
- 0.25 inches (6.35 mm)
- Fuel Pump Pressure
- 58 psi (400 kPa)
- Fuel Filter Size
- 2.5 inches x 1.5 inches (63.5 mm x 38.1 mm)
- Fuel injector Flow Rate
- 250 cc/min
- Fuel Rail Length
- 12 inches (304.8 mm)
- Fuel Tank Weight Empty
- 10 lbs (4.5 kg)
Materials
- Fuel Tank
- High-density polyethylene
- Fuel Lines
- Nylon with rubber coating
- Fuel Pump
- Stainless steel and plastic composite
- Fuel injectors
- Stainless steel and ceramic
Features
- Fuel Delivery
-
- Direct fuel injection
- Sequential multi-port injection
- Variable fuel pressure control
- Efficiency
-
- Optimized combustion chamber design
- Low friction fuel pump
- Lightweight fuel system components
- Emissions
-
- Closed-loop fuel control
- Evaporative emissions system
- Catalytic converter compatibility
- Performance
-
- High-pressure fuel pump
- Precision fuel injectors
- Rapid fuel delivery response
- Safety
-
- Fuel cut-off in crash detection
- Leak detection system
- Overpressure relief valve
Safety Features
- Crash Safety
-
- Automatic fuel pump shutoff
- Impact-resistant fuel tank
- Fire Prevention
-
- Flame arrestor in fuel tank
- Heat shielding around fuel lines
- Leak Detection
-
- Integrated fuel leak sensor
- Sealed fuel system components
Comfort Features
- Noise Reduction
-
- Quiet fuel pump operation
- Vibration-dampened fuel lines
- Drivability
-
- Smooth fuel delivery
- Consistent fuel pressure
- Maintenance
-
- Easy-access fuel filter
- Serviceable fuel injectors
Accessories
- Fuel Additives
-
- Fuel system cleaner
- Octane booster
- Fuel stabilizer
- Fuel Tank
-
- Fuel tank cover
- Fuel tank protector
- Fuel tank skid plate
- Fuel Lines
-
- Fuel line insulation
- Fuel line clamps
- Fuel line quick disconnects
Maintenance
- Service interval
- Every 7,500 miles or 6 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 recommended fuel grade (87 octane or higher)
Warranty
- Basic Warranty
- Miles: 36,000Years: 3Coverage: Fuel system components
- Powertrain Warranty
- Miles: 60,000Years: 5Coverage: Fuel pump and injectors
- Emissions Warranty
- Miles: 80,000Years: 8Coverage: Fuel system emissions components
- Corrosion Warranty
- Miles: UnlimitedYears: 5Coverage: Fuel tank corrosion
Production Details
- Manufacturer
- Subaru Corporation
- Manufacturing Process
-
- Injection molding for fuel tank
- CNC machining for fuel injectors
- Robotic assembly for fuel lines
- Quality Control
- Pressure Testing: Fuel system pressure tested to 100 psiLeak Testing: Fuel system leak tested with nitrogenMaterial inspection: X-ray inspection of fuel tank welds
- Sustainability Practices
-
- Recycled materials in fuel tank
- Low VOC emissions in production
- Energy-efficient manufacturing
- Production Metrics
- Annual Production: 500,000 unitsDefect Rate: 0.01%Production Time: 2 hours per fuel system
Service Information for fuel Service
Maintenance and service requirements specific to the fuel system
- Inspect fuel lines and connections
- Check fuel pump operation
- Test fuel pressure
- Inspect fuel tank for damage
- Check fuel filter condition
Use only Subaru-approved fuel system cleaners
- Replace fuel filter
- Clean fuel injectors
- Inspect fuel tank straps
- Check fuel system for leaks
- Test fuel pressure regulator
Special tools required for fuel injector cleaning
- Replace fuel pump assembly
- Replace fuel filter
- Inspect and clean fuel tank
- Replace fuel injector O-rings
- Perform complete fuel system diagnostic
Fuel tank must be completely drained before service
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of fuel is compatible with the 2011-2016 Subaru Impreza?
What type of fuel is compatible with the 2011-2016 Subaru Impreza?
The 2011-2016 Subaru Impreza is compatible with regular unleaded gasoline with an octane rating of 87 or higher. Using higher octane fuel is not necessary and will not improve performance or fuel efficiency. It is important to avoid using diesel, E85, or any fuel blends with more than 10% ethanol, as these can damage the engine and void the warranty.
Q2 What are the maintenance requirements for the fuel system in a 2011-2016 Subaru Impreza?
What are the maintenance requirements for the fuel system in a 2011-2016 Subaru Impreza?
Regular maintenance for the fuel system includes inspecting the fuel lines and connections for leaks, replacing the fuel filter every 30,000 miles, and using a fuel system cleaner every 15,000 miles to prevent buildup. Additionally, the fuel pump and injectors should be checked during major service intervals, typically every 60,000 miles, to ensure optimal performance.
Q3 How do I replace the fuel filter in a 2011-2016 Subaru Impreza?
How do I replace the fuel filter in a 2011-2016 Subaru Impreza?
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, usually under the car near the fuel tank. Disconnect the fuel lines and remove the filter mounting bolts. Install the new filter, reconnect the fuel lines, and secure the mounting bolts. Finally, reconnect the fuel pump fuse and start the engine to check for leaks.
Q4 What should I do if my 2011-2016 Subaru Impreza has poor fuel economy?
What should I do if my 2011-2016 Subaru Impreza has poor fuel economy?
If your Impreza has poor fuel economy, check for common issues such as a dirty air filter, low tire pressure, or a malfunctioning oxygen sensor. Inspect the fuel system for leaks or clogs and ensure the fuel injectors are clean. Regularly servicing the engine and using the recommended grade of fuel can also help maintain optimal fuel efficiency.
Q5 How can I optimize the fuel performance of my 2011-2016 Subaru Impreza?
How can I optimize the fuel performance of my 2011-2016 Subaru Impreza?
To optimize fuel performance, maintain proper tire pressure, use the recommended grade of fuel, and keep up with regular maintenance, including oil changes and air filter replacements. Avoid aggressive driving and excessive idling. Using a fuel system cleaner periodically can also help maintain fuel injector efficiency and overall 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.
2011-2016 Subaru Impreza Service Manual
Coming SoonComprehensive guide covering maintenance, repairs, and technical specifications for the 2011-2016 Subaru Impreza.
Technical Service Bulletin: Fuel System Updates
Coming SoonDetails updates and fixes for the fuel system in the 2011-2016 Subaru Impreza, including common issues and solutions.
Subaru Impreza Parts and Accessories Catalog
Coming SoonComplete catalog of OEM and aftermarket parts and accessories for the 2011-2016 Subaru Impreza.
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