Acura RLX 2014-2020

Acura RLX 2014-2020 3.5L Engine Specifications

Detailed technical specifications and documentation for the 3.5L V6 engine in the 2014-2020 Acura RLX. Includes performance metrics, torque and horsepower ratings, fuel and ignition system details, and maintenance guidelines.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the 3.5L V6 engine specifications for the 2014-2020 Acura RLX, including key features, measurements, and technical details.

How to Use

Use the search function to locate specific 3.5L-engine specifications by entering keywords such as 'torque', 'horsepower', or 'compression ratio'.

Navigate through the documentation sections using the table of contents or by scrolling through the major sections and subsections.

Key Specifications

Displacement

3.5L (3471 cc)

Horsepower

310 hp @ 6500 rpm

Torque

272 lb-ft @ 4500 rpm

Compression Ratio

11.5:1

Fuel Economy

20 mpg city / 31 mpg highway

Available Specifications

Engine Design and Configuration

Details about the engine's design, configuration, and key components.

Engine Type and Layout

3.5L V6 naturally aspirated engine
60-degree V-angle configuration
DOHC (Dual Overhead Camshaft) design
24-valve setup with Variable Valve Timing and Lift Electronic Control (VTEC)

Cylinder Block and Head

Aluminum alloy cylinder block for reduced weight
Aluminum cylinder head with integrated exhaust manifold
Bore: 89 mm (3.50 in)
Stroke: 93 mm (3.66 in)
Compression ratio: 11.5:1

Note: The aluminum construction improves thermal efficiency and reduces overall engine weight.

Performance Specifications

Technical details about the engine's performance capabilities.

Power Output

Horsepower: 310 hp @ 6500 rpm
Torque: 272 lb-ft @ 4500 rpm
Redline: 6800 rpm
Fuel delivery: Direct injection system

Fuel Efficiency

EPA-estimated fuel economy: 20 mpg city / 31 mpg highway
Fuel tank capacity: 18.5 gallons
Recommended fuel: Premium unleaded (91 octane or higher)

Note: Fuel efficiency may vary based on driving conditions and vehicle configuration.

Cooling and Lubrication Systems

Information about the engine's cooling and lubrication systems.

Cooling System

Liquid-cooled with a high-capacity radiator
Thermostatically controlled electric cooling fan
Coolant capacity: 7.4 quarts (7.0 liters)

Lubrication System

Wet sump oil system
Oil capacity: 5.7 quarts (5.4 liters) with filter
Recommended oil: 0W-20 synthetic oil

Note: Regular oil changes are critical to maintaining engine performance and longevity.

Emissions and Compliance

Details about the engine's emissions systems and compliance standards.

Emissions Control

Equipped with a three-way catalytic converter
Meets EPA Tier 3 and CARB LEV III emissions standards
Onboard Diagnostics II (OBD-II) compliant

Exhaust System

Dual exhaust with active noise cancellation
Exhaust pipe diameter: 2.25 inches
Stainless steel construction for durability

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Engine Specifications

Overview

Type: V6

Configuration: Naturally Aspirated

Platform: J35Z6

Fuel Type: Gasoline

Displacement: 3.5L

Power Output: 310 HP @ 6,700 RPM

Torque Output: 272 lb-ft @ 4,900 RPM

Compression Ratio: 11.5:1

Emissions Standard: ULEV-2

Dimensions

Engine Length: 22 in (55.8 cm)

Engine Width: 26 in (66 cm)

Engine Height: 25 in (63.5 cm)

Dry Weight: 403 lbs (183 kg)

Displacement: 3.5L (211 cubic inches)

Cylinder Bore: 3.54 in (89.9 mm)

Materials

Engine Block: Aluminum Alloy

Cylinder Head: Aluminum Alloy

Crankshaft: Forged Steel

Connecting Rods: Lightweight Forged Steel

intake Manifold: Lightweight Plastic

Features

Engine Management

i-VTEC (Intelligent Variable Valve Timing and Lift Electronic Control)
Direct Fuel Injection
Drive-by-Wire Throttle System

Fuel Efficiency

Variable Cylinder Management (VCM)
Eco Mode
Combustion Chamber Design

Performance

6-Speed Automatic Transmission with Sport Mode
Paddle-Shifted Sequential SportShift
Grade Logic Control

Emissions Control

Close-Coupled Catalytic Converter
High-Flow Exhaust System
Advanced Exhaust Gas Recirculation

Cooling System

Dual-Zone Automatic Climate Control
Coolant Reservoir with Level Sensor
Electric Water Pump

Sound Features

Active Sound Control
Acoustic Engine Cover

Engine Protection

Knock Sensor
Oil Condition Monitor
Engine Oil Cooler

Safety Features

Engine Safety

Engine Immobilizer System
Fuel Cut-Off in Case of Crash
Automatic Engine Shutdown

Compliance: Meets or Exceeds Federal Safety Standards

Emissions Safety: ULEV-2 Emissions Compliance

Comfort Features

Noise Reduction

Acoustic Insulation
Balanced Engine Mounts
Active Noise Cancellation

Engine Smoothness: Hydraulic Engine Mounts

Climate Control: Integrated Dynamic System

Accessibility: Remote Engine Start

Accessories

Engine Accessories

Engine Cover Dress-Up Kit
Performance Air Filter
Engine Oil Filler Cap

Transmission Accessories

Transmission Fluid Pan
Cooling System Upgrade Kit
Performance Spark Plug Wires

Exhaust Accessories

High-Performance Exhaust System
Exhaust Tip Kit
Catalytic Converter Upgrade

Maintenance

Service interval: 5,000 - 7,500 miles

Maintenance Items

Oil Change
Tire Rotation
Brake Inspection
Fluid Check
Air Filter Inspection

Notes: Synthetic Oil Recommended, Inspect Coolant Levels Annually, Replace Timing Belt at 105,000 Miles

Warranty

Basic Warranty: Miles: 36,000 miles
Years: 3 years
Coverage: Bumper-to-Bumper

Powertrain Warranty: Miles: 60,000 miles
Years: 5 years
Coverage: Engine, Transmission, Drivetrain

Emissions Warranty: Miles: 36,000 miles
Years: 3 years
Coverage: Emissions Control Components

Accessories Warranty: Miles: 36,000 miles
Years: 3 years
Coverage: Accessories and Audio Systems

Production Details

Manufacturer: Honda of America Mfg., Inc.

Manufacturing Process

Casting
Machining
Assembly
Quality Inspection

Quality Control: inspection: End-of-Line Testing
Testing: Performance Bench Testing
Certification: Compliance with Industry Standards

Sustainability: Recycled Materials Used in Engine Components

Production Metrics: Meets Stringent Emissions and Fuel Efficiency Standards

Service Information for 3.5l engine Service

Maintenance and service requirements specific to this component

5,000 - 7,500 miles

6 months

Oil Change
Tire Rotation
Brake Inspection
Fluid Check
Air Filter Inspection

Synthetic Oil Recommended, Inspect Coolant Levels

15,000 miles

12 months

Inspect Serpentine Belt
Transmission Fluid Check
Air Filter Replacement
Battery Test
Brake Pad Inspection

Special Tools May Be Required for Belt Inspection

30,000 miles

24 months

Spark Plug Replacement
Coolant Replacement
Drive Belt Replacement
Fuel Injector Cleaning
Performance Testing

Critical to Use Genuine Parts for Spark Plugs and Belts

Common Questions

Find answers to common questions about torque specifications

What is the horsepower and torque output of the 3.5L engine in the 2014-2020 Acura RLX?

The 3.5L V6 engine in the 2014-2020 Acura RLX produces 310 horsepower at 6,500 rpm and 272 lb-ft of torque at 4,500 rpm. This engine is equipped with Variable Cylinder Management (VCM) to optimize fuel efficiency.

What type of fuel is recommended for the 3.5L engine in the Acura RLX?

Acura recommends using premium unleaded gasoline with an octane rating of 91 or higher for optimal performance and efficiency in the 3.5L engine. Using lower-octane fuel may result in reduced performance and fuel economy.

What is the oil capacity of the 3.5L engine in the Acura RLX?

The 3.5L engine in the Acura RLX has an oil capacity of approximately 5.7 quarts (5.4 liters) when including the oil filter. Always use Acura-recommended 0W-20 synthetic oil for proper lubrication and engine longevity.

Does the 3.5L engine in the Acura RLX require a timing belt or chain?

The 3.5L engine in the Acura RLX uses a timing chain, which is designed to last the lifetime of the engine under normal operating conditions. Unlike a timing belt, it does not require periodic replacement.

What is the recommended service interval for spark plugs in the 3.5L engine?

Acura recommends replacing the spark plugs in the 3.5L engine every 105,000 miles or 168,000 kilometers. Use only NGK or Denso iridium-tipped spark plugs specified for this engine.

What is the compression ratio of the 3.5L engine in the Acura RLX?

The 3.5L engine in the Acura RLX has a compression ratio of 11.5:1, which contributes to its high efficiency and power output.

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 RLX 3.5L Engine Maintenance Guide

Coming Soon

A detailed guide covering routine maintenance procedures, including oil changes, spark plug replacement, and fluid checks for the 3.5L engine.

Acura Genuine Parts Catalog

Coming Soon

Access the official catalog for genuine Acura parts, including filters, gaskets, and other components specific to the 3.5L engine.

Acura RLX Owner's Manual

Coming Soon

The official owner's manual for the 2014-2020 Acura RLX, providing detailed information on engine operation, maintenance schedules, and troubleshooting.

Acura Service Bulletins for 3.5L Engine

Coming Soon

A collection of service bulletins and technical updates related to the 3.5L engine, addressing common issues and recommended fixes.

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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.
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