Acura RL 2005-2012 3.7L Engine Specifications
Detailed technical specifications and documentation for the 3.7L V6 engine in the 2005-2012 Acura RL. Includes performance metrics, maintenance guidelines, and component-specific details.
3.7L Engine Specifications Overview Specifications
This document provides detailed specifications and technical information for the 3.7L engine found in the 2005-2012 Acura RL. It is designed to serve as a reference guide for mechanics, enthusiasts, and researchers. Use the search functionality to find specific details or navigate through the sections to explore comprehensive information about the engine's performance, design, and maintenance.
How to Use
To search for specific information, use the search bar at the top of the document. Enter keywords such as 'horsepower,' 'torque,' or 'fuel efficiency' to quickly locate relevant details.
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Key Specifications
Engine Type
3.7L SOHC V6
Horsepower
300 HP @ 6,200 rpm
Torque
260 lb-ft @ 4,500 rpm
Fuel Type
Premium Unleaded Gasoline
Fuel Economy (Combined)
19 MPG
Available Specifications
Engine Specifications
This section provides detailed technical specifications of the 3.7L engine, including displacement, horsepower, torque, and fuel system details.
Engine Specifications
This section provides detailed technical specifications of the 3.7L engine, including displacement, horsepower, torque, and fuel system details.
General Specifications
- Engine Type: 3.7L SOHC V6
- Displacement: 3.7 liters (224 cu in)
- Cylinders: 6
- Valves: 24 valves with VTEC
- Fuel Type: Premium Unleaded Gasoline
Performance Specifications
- Horsepower: 300 HP @ 6,200 rpm
- Torque: 260 lb-ft @ 4,500 rpm
- Redline: 6,800 rpm
- Compression Ratio: 11.0:1
Engine Design and Features
This section outlines the key design elements and advanced features of the 3.7L engine, including materials, technologies, and engineering highlights.
Engine Design and Features
This section outlines the key design elements and advanced features of the 3.7L engine, including materials, technologies, and engineering highlights.
Engine Design
- Aluminum alloy engine block and cylinder heads
- Forged steel crankshaft
- High-strength connecting rods
- Lightweight pistons with molybdenum coating
Advanced Features
- Variable Valve Timing (VTEC)
- Variable Cylinder Management (VCM)
- Direct Ignition System
- Dual-Stage Intake Manifold
Fuel System and Efficiency
This section covers the fuel system specifications and fuel efficiency ratings for the 3.7L engine.
Fuel System and Efficiency
This section covers the fuel system specifications and fuel efficiency ratings for the 3.7L engine.
Fuel System Details
- Multi-point fuel injection
- High-flow fuel injectors
- Returnless fuel distribution system
- Fuel tank capacity: 18.5 gallons
Fuel Economy
- City: 16 MPG
- Highway: 23 MPG
- Combined: 19 MPG
- Estimated annual fuel cost: $2,150
Emissions and Compliance
This section provides information on emissions standards, control systems, and environmental compliance for the 3.7L engine.
Emissions and Compliance
This section provides information on emissions standards, control systems, and environmental compliance for the 3.7L engine.
Emissions Standards
- Meets ULEV-2 emissions standards
- 50-state emissions compliant
- OBD-II onboard diagnostics system
- 3-way catalytic converter with pre-catalysts
Search Specifications
Search by specification name, value, or description
Type to search through torque specifications. Results will appear below as you type.
Engine Specifications
Overview
- Type
- V6
- Configuration
- V6 layout
- Platform
- J37
- Material
- Aluminum alloy
- Location
- Front transverse
- Fuel Type
- Regular unleaded
Dimensions
- Displacement
- 3.7 liters (224.0 cubic inches)
- Bore
- 89.0 mm (3.5 in)
- Stroke
- 93.0 mm (3.66 in)
- Compression Ratio
- 11.1:1
- Engine Weight
- 405 lbs (183.7 kg)
- Oil Capacity
- 5.5 quarts (5.2 liters)
- Fuel-Tank Capacity
- 18.5 gallons (70 liters)
Materials
- Engine Block
- Aluminum alloy
- Cylinder Heads
- Aluminum alloy
- Crankshaft
- Steel
- Camshaft
- Steel
- Valves
- Stainless steel
Features
- Engine Management
-
- Computer-controlled fuel injection
- Variable Valve Timing (VTEC)
- Drive-by-wire throttle system
- Fuel System
-
- Multi-point fuel injection
- High-flow intake system
- Dual-stage intake manifold
- Emission Controls
-
- Catalytic converter
- EVAP system
- EGR system
- Cooling System
-
- Water-cooled
- Dual cooling fans
- Thermostat-controlled
- Performance
-
- 280 horsepower @ 6,200 rpm
- 260 lb-ft torque @ 4,500 rpm
- Redline at 6,800 rpm
- Transmission integration
-
- Compatible with 5-speed automatic
- Grade logic control
- Shift hold control
Safety Features
- Engine Protection
-
- Knock sensor
- Oil pressure monitoring
- Overheat protection
- Monitoring Systems
-
- Engine light notification
- Fuel system monitoring
- Emission system monitoring
- Structural integrity
-
- Reinforced engine block
- Strong connecting rods
- Durable piston design
- Fire Prevention
-
- Fuel cut-off in crash
- Protected wiring harness
- Secure fuel lines
Comfort Features
- Noise Reduction
-
- Balanced engine design
- Sound-dampening materials
- Active noise cancellation
- Temperature Control
-
- Rapid warm-up system
- Efficient cooling
- Climate-controlled engine operation
- Convenience
-
- Maintenance reminder
- Real-time engine monitoring
- Easy service access
- Drivetrain Smoothness
-
- Smooth power delivery
- Low vibration levels
- Refined operation
Accessories
- Engine Dress-Up
-
- Polished engine covers
- Chrome-plated components
- Custom engine badges
- Performance Upgrades
-
- Cold air intake
- Performance exhaust
- Engine tuning
- Maintenance Accessories
-
- Oil change kit
- Air filter kit
- Spark plug set
Maintenance
- Service interval
-
- Oil change every 5,000 to 7,500 miles
- Tire rotation every 5,000 miles
- Brake inspection every 15,000 miles
- Spark plug replacement every 30,000 miles
- Timing belt inspection every 60,000 miles
- Coolant flush every 90,000 miles
- Maintenance Notes
-
- Use 0W-20 synthetic oil
- Inspect belts and hoses regularly
- Check fluid levels every oil change
- Replace air filter every 15,000 miles
Warranty
- Basic
- Miles: 50,000Years: 4Coverage: Bumper-to-bumperNotes: Includes engine and transmission
- Powertrain
- Miles: 70,000Years: 6Coverage: Engine, transmission, drivetrainNotes: Includes all moving parts
- Corrosion
- Miles: UnlimitedYears: 5Coverage: Perforation onlyNotes: Excludes surface rust
- Emissions
- Miles: 80,000Years: 8Coverage: Emission controlsNotes: Covers catalytic converter and related components
Production Details
- Manufacturer
- Honda
- Manufacturing Process
-
- CNC machining
- Forged steel crankshaft
- High-strength aluminum casting
- Laser welding
- Quality Control
- inspection: Dimensional checks, Leak testing, Performance testingCertification: ISO 9001Warranty Period: 6 years/70,000 miles
- Sustainability Practices
-
- Recycled materials in production
- Energy-efficient manufacturing
- Low emissions during assembly
- Production Metrics
- Production Years: 2005-2012Units Produced: Over 100,000Production Plant: Sayama Plant, JapanQuality Rating: High
Service Information for 3.7l engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Tire rotation
- Brake inspection
- Fluid level check
- Air filter inspection
Normal driving conditions. Adjust intervals for severe driving.
- Spark plug replacement
- Belts and hoses inspection
- Wiper blades replacement
- Battery test
- Suspension inspection
Recommended for average driving conditions.
- Fuel injector cleaning
- Fuel filter replacement
- Transmission fluid change
- Coolant flush
- Exhaust system inspection
More extensive service, special tools may be required.
- Timing belt replacement
- Water pump replacement
- Drive belts replacement
- Engine mounts inspection
- Steering system inspection
Critical for engine longevity, follow manufacturer guidelines.
Common Questions
Find answers to common questions about torque specifications
Q1 What is the horsepower and torque output of the 3.7L engine in the 2005-2012 Acura RL?
What is the horsepower and torque output of the 3.7L engine in the 2005-2012 Acura RL?
The 3.7L V6 engine in the 2005-2012 Acura RL produces 300 horsepower at 6300 RPM and 271 lb-ft of torque at 5000 RPM. It features VTEC (Variable Valve Timing and Lift Electronic Control) for optimized performance and efficiency.
Q2 What type of oil and oil capacity does the 3.7L engine require?
What type of oil and oil capacity does the 3.7L engine require?
The 3.7L engine requires 5W-20 synthetic oil with a capacity of 5.7 quarts (including the oil filter). Always use Acura-recommended oil or equivalent to ensure proper lubrication and engine longevity.
Q3 What is the recommended spark plug gap for the 3.7L engine?
What is the recommended spark plug gap for the 3.7L engine?
The recommended spark plug gap for the 3.7L engine is 0.043-0.047 inches (1.1-1.2 mm). Use NGK IZFR6K11 or equivalent iridium-tipped spark plugs for optimal performance.
Q4 How often should the timing belt be replaced on the 3.7L engine?
How often should the timing belt be replaced on the 3.7L engine?
The timing belt on the 3.7L engine should be replaced every 105,000 miles or 7 years, whichever comes first. Failure to replace the timing belt can result in severe engine damage.
Q5 What is the compression ratio of the 3.7L engine?
What is the compression ratio of the 3.7L engine?
The 3.7L engine has a compression ratio of 11.2:1, which contributes to its high performance and efficiency.
Q6 What is the recommended coolant type for the 3.7L engine?
What is the recommended coolant type for the 3.7L engine?
The 3.7L engine requires Acura Long-Life Antifreeze/Coolant Type 2. The coolant capacity is approximately 8.5 quarts (8.0 liters) when the system is completely drained.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Acura RL 3.7L Engine Service Manual
Coming SoonOfficial service manual for the 3.7L engine, covering maintenance, repair procedures, and technical specifications.
Timing Belt Replacement Guide for 3.7L Engine
Coming SoonStep-by-step guide for replacing the timing belt on the 3.7L engine, including torque specifications and safety precautions.
3.7L Engine Performance Tuning Tips
Coming SoonTechnical guide on optimizing the performance of the 3.7L engine, including air intake, exhaust, and ECU tuning recommendations.
Common Issues and Solutions for 3.7L Engine
Coming SoonA comprehensive list of common issues with the 3.7L engine and recommended solutions, including troubleshooting tips.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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