Subaru Subaru Legacy 2010-2014 Fuel System Specifications
Discover the detailed fuel specifications for the 2010-2014 Subaru Legacy, including fuel type, tank capacity, economy, and octane rating. Essential for maintenance and performance optimization.
Overview Specifications
This document provides detailed fuel specifications for the 2010-2014 Subaru Legacy. It includes information on fuel types, fuel economy, tank capacity, and emissions. Use this guide to understand the technical aspects of the vehicle's fuel system and to compare it with other models. The document is organized into sections for easy navigation and includes a quick reference table for key specifications.
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Use the search functionality to quickly find specific terms or specifications. Enter keywords like 'fuel economy' or 'tank capacity' to locate relevant information.
Navigate through the document using the section titles. Each section is divided into subsections with detailed points. Use the table of contents or scroll to find the desired information.
Key Specifications
Fuel Type
Regular Unleaded (87 octane)
Fuel Tank Capacity
18.5 gallons
City MPG
20-23 MPG
Highway MPG
27-31 MPG
Emissions Standard
Tier 2 Bin 5
Available Specifications
Fuel Types and Requirements
This section covers the types of fuel recommended for the 2010-2014 Subaru Legacy, including octane ratings and any specific requirements for optimal performance.
Fuel Types and Requirements
This section covers the types of fuel recommended for the 2010-2014 Subaru Legacy, including octane ratings and any specific requirements for optimal performance.
Recommended Fuel Types
- Regular unleaded gasoline (87 octane)
- Premium unleaded gasoline (91 octane) recommended for turbocharged models
- Ethanol blends up to E10 are acceptable
- Do not use diesel or E85 fuels
Fuel Additives
- Use of fuel additives is generally not required
- Subaru recommends Top Tier detergent gasoline for cleaner engine performance
- Avoid using additives containing methanol
- Consult the owner's manual for specific recommendations
Fuel Economy
This section provides detailed information on the fuel efficiency of the 2010-2014 Subaru Legacy, including city, highway, and combined MPG ratings.
Fuel Economy
This section provides detailed information on the fuel efficiency of the 2010-2014 Subaru Legacy, including city, highway, and combined MPG ratings.
MPG Ratings
- City: 20-23 MPG (depending on engine and drivetrain)
- Highway: 27-31 MPG (depending on engine and drivetrain)
- Combined: 23-26 MPG (depending on engine and drivetrain)
- Turbocharged models have slightly lower MPG ratings
Factors Affecting Fuel Economy
- Driving habits (aggressive driving reduces MPG)
- Vehicle load and cargo weight
- Tire pressure and condition
- Environmental conditions (e.g., temperature, altitude)
Fuel Tank and Capacity
This section details the fuel tank specifications for the 2010-2014 Subaru Legacy, including capacity and refueling tips.
Fuel Tank and Capacity
This section details the fuel tank specifications for the 2010-2014 Subaru Legacy, including capacity and refueling tips.
Fuel Tank Capacity
- Standard fuel tank capacity: 18.5 gallons
- Reserve capacity: approximately 2.5 gallons
- Range: approximately 400-500 miles on a full tank
- Turbocharged models may have slightly reduced range
Refueling Tips
- Always use the recommended fuel type
- Avoid overfilling the tank to prevent spillage
- Ensure the fuel cap is securely tightened after refueling
- Check for fuel leaks or unusual odors after refueling
Emissions and Environmental Impact
This section covers the emissions standards and environmental impact of the 2010-2014 Subaru Legacy, including compliance with regulations and eco-friendly features.
Emissions and Environmental Impact
This section covers the emissions standards and environmental impact of the 2010-2014 Subaru Legacy, including compliance with regulations and eco-friendly features.
Emissions Standards
- Complies with U.S. EPA Tier 2 Bin 5 emissions standards
- Meets California LEV II emissions requirements
- Equipped with a catalytic converter and oxygen sensors
- Low emissions vehicle (LEV) certification
Eco-Friendly Features
- PZEV (Partial Zero Emissions Vehicle) option available in certain states
- Improved fuel efficiency reduces carbon footprint
- Recyclable materials used in vehicle construction
- Subaru's commitment to reducing environmental impact
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Component Specifications
Overview
- Type
- Gasoline
- Octane Rating
- 87 (regular), 91 (premium)
- Fuel Tank Capacity
- 18.5 gallons (70 liters)
- Fuel Delivery
- Sequential multi-port fuel injection
- Emission Standard
- Tier 2 Bin 5
- Fuel Economy
- 23 city / 31 highway mpg (10.2 / 7.6 L/100km)
Dimensions
- Fuel Tank Length
- 32.5 inches (82.5 cm)
- Fuel Tank Width
- 24.8 inches (63 cm)
- Fuel Tank Height
- 12.2 inches (31 cm)
- Fuel Filler Diameter
- 1.5 inches (3.8 cm)
- Fuel Line Diameter
- 0.375 inches (9.5 mm)
- Fuel Pump Pressure
- 58 psi (400 kPa)
- Fuel Filter Size
- 3.5 inches x 2.5 inches (8.9 cm x 6.4 cm)
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
- Fuel injectors
- Aluminum and stainless steel
Features
- Fuel Delivery
-
- Sequential multi-port injection
- Variable fuel pressure regulation
- Electronic throttle control
- Direct fuel vapor recovery
- Fuel Efficiency
-
- Active grille shutters
- Low rolling resistance tires
- Eco-driving indicator
- Lightweight fuel system components
- Emission Control
-
- Catalytic converter
- Evaporative emission control system
- Oxygen sensors
- Exhaust gas recirculation (EGR)
- Safety
-
- Rollover valve
- Fuel cut-off inertia switch
- Impact-resistant fuel tank
- Leak detection system
- Monitoring
-
- Fuel level sensor
- Fuel pressure sensor
- Fuel temperature sensor
- Onboard diagnostics (OBD-II)
Safety Features
- Crash Protection
-
- Impact-resistant fuel tank
- Automatic fuel pump shutoff
- Fire Prevention
-
- Flame arrestor in fuel filler
- Fuel line quick-disconnect fittings
- Leak Prevention
-
- Double-walled fuel lines
- Sealed fuel system
Comfort Features
- Refueling
-
- Easy-access fuel filler
- Capless fuel filler design
- Fuel door release from cabin
- Driving
-
- Smooth fuel delivery
- Quiet fuel pump operation
- Stable fuel pressure
- Maintenance
-
- Easy fuel filter access
- Serviceable fuel pump
- Durable fuel lines
Accessories
- Fuel Additives
-
- Fuel system cleaner
- Octane booster
- Fuel stabilizer
- Fuel Caps
-
- Locking fuel cap
- Vented fuel cap
- OEM replacement cap
- Fuel Tools
-
- Fuel pressure tester
- Fuel line disconnect tool
- Fuel injector cleaner
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Replace fuel filter
- Inspect fuel lines for leaks
- Check fuel pump operation
- Test fuel pressure
- Clean fuel injectors
- Maintenance Notes
- Use only recommended fuel types and additives to maintain system integrity.
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: Catalytic converter and sensors
- Corrosion Warranty
- Miles: UnlimitedYears: 5Coverage: Fuel tank and lines
Production Details
- Manufacturer
- Subaru Corporation
- Manufacturing Process
-
- Injection molding for fuel tank
- Robotic assembly for fuel lines
- Precision machining for injectors
- Quality Control
- Pressure Testing: Fuel system pressure tested to 100 psiLeak Testing: Helium leak detection for fuel linesDurability Testing: Simulated 150,000 miles of operation
- Sustainability Practices
-
- Recycled materials in fuel tank
- Low-emission manufacturing
- Energy-efficient production
- Production Metrics
- Annual Production: 500,000 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 operation
- Test fuel pressure
- Clean fuel injectors
Use only OEM or equivalent parts for replacements.
- Replace fuel pump if necessary
- Inspect fuel tank for damage
- Check evaporative emission system
- Test fuel pressure regulator
- Inspect fuel injectors for leaks
Perform fuel system diagnostics using OBD-II scanner.
- Replace fuel pump assembly
- Replace fuel filter
- Inspect and clean fuel tank
- Replace fuel injectors if necessary
- Perform complete fuel system pressure test
Major service interval requires specialized tools and equipment.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of fuel is recommended for the 2010-2014 Subaru Legacy?
What type of fuel is recommended for the 2010-2014 Subaru Legacy?
The 2010-2014 Subaru Legacy is designed to run on regular unleaded gasoline with an octane rating of 87 or higher. Using premium fuel is not required but may improve performance in certain conditions. Always refer to the owner's manual for specific fuel recommendations and avoid using fuels with more than 10% ethanol (E10) unless specified as compatible.
Q2 What is the recommended maintenance schedule for the 2010-2014 Subaru Legacy?
What is the recommended maintenance schedule for the 2010-2014 Subaru Legacy?
The 2010-2014 Subaru Legacy requires regular maintenance every 6,000 miles or 6 months, whichever comes first. Key tasks include oil and filter changes, tire rotations, and brake inspections. At 30,000 miles, additional services like air filter replacement and fluid checks are recommended. Always follow the detailed maintenance schedule in the owner's manual to ensure optimal performance and longevity.
Q3 How do I replace the fuel filter on a 2010-2014 Subaru Legacy?
How do I replace the fuel filter on a 2010-2014 Subaru Legacy?
To replace the fuel filter on a 2010-2014 Subaru Legacy, first, locate the filter near the fuel tank. Relieve fuel system pressure by disconnecting the fuel pump fuse and running the engine until it stalls. Disconnect the battery, then remove the filter's mounting bolts and fuel lines. Install the new filter, reconnect the lines and battery, and test for leaks. Always consult the service manual for detailed instructions.
Q4 What should I do if my 2010-2014 Subaru Legacy has poor fuel efficiency?
What should I do if my 2010-2014 Subaru Legacy has poor fuel efficiency?
If your 2010-2014 Subaru Legacy has poor fuel efficiency, check for common issues such as dirty air filters, underinflated tires, or a malfunctioning oxygen sensor. Ensure the fuel system is clean and the spark plugs are in good condition. If problems persist, have a professional diagnose the vehicle for potential issues like fuel injector problems or engine misfires.
Q5 How can I optimize the fuel performance of my 2010-2014 Subaru Legacy?
How can I optimize the fuel performance of my 2010-2014 Subaru Legacy?
To optimize fuel performance, maintain proper tire pressure, use the recommended fuel grade, and keep up with regular maintenance. Avoid excessive idling and aggressive driving. Consider using fuel system cleaners periodically and ensure the engine air filter is clean. These steps can help improve mileage and overall engine efficiency.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2010-2014 Subaru Legacy Owner's Manual
Coming SoonComprehensive guide covering vehicle operation, maintenance schedules, and troubleshooting tips for the 2010-2014 Subaru Legacy.
Subaru Technical Service Bulletin (TSB) for Fuel System
Coming SoonLatest updates and fixes for fuel system-related issues in the 2010-2014 Subaru Legacy.
Subaru Legacy Parts and Accessories Catalog
Coming SoonDetailed catalog of OEM parts and accessories for the 2010-2014 Subaru Legacy, including fuel system components.
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Technical Information
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