Lexus IS 2006-2013 2.5L V6 Engine Engine Specifications
Lexus IS 2006-2013

Lexus IS 2006-2013 2.5L V6 Engine Specifications

Detailed technical specifications for the 2.5L V6 engine in Lexus IS models from 2006 to 2013. Includes engine data, maintenance tips, compatibility info, and performance details for technicians and owners.

Updated

Overview Specifications

This document provides detailed technical specifications and insights into the 2.5L V6 engine used in the 2006-2013 Lexus IS models. Designed for automotive enthusiasts, technicians, and potential buyers, the content covers engine performance, design features, maintenance requirements, and troubleshooting tips. Use this guide to understand the engine's capabilities, optimize its performance, and ensure proper care. Whether you're maintaining your vehicle or exploring its technical aspects, this resource offers comprehensive information to assist you in making informed decisions.

How to Use

Use the search function to quickly locate specific terms or phrases within this document. Enter keywords related to the engine component or feature you're interested in, and the search will highlight relevant sections for easy reference.

Navigate through the document using the table of contents or scroll through sections sequentially. Each major section is clearly labeled, and subsections are organized to provide a logical flow of information for efficient access to detailed specifications and guidance.

Key Specifications

Displacement

2.5L

Horsepower

204 hp

Torque

185 lb-ft

Compression Ratio

10.8:1

Fuel System

Direct Injection

Available Specifications

Engine Performance

This section delves into the performance characteristics of the 2.5L V6 engine, including horsepower, torque, and fuel efficiency. It also examines the engine's responsiveness, acceleration, and overall driving experience, providing a comprehensive understanding of its capabilities in various driving conditions.

Horsepower and Torque
  • Maximum horsepower: 204 hp @ 6400 rpm
  • Maximum torque: 185 lb-ft @ 4800 rpm
  • Smooth power delivery across the RPM range
  • Optimized for balanced performance and efficiency
Fuel Efficiency
  • City mileage: 18-20 mpg
  • Highway mileage: 25-27 mpg
  • Combined fuel economy: 21-23 mpg
  • Designed for optimal fuel consumption
  • Advanced fuel injection system

Engine Design

Explore the engineering and design features that make the 2.5L V6 engine a reliable and efficient powerplant. This section covers the engine's architecture, materials, and innovative technologies that contribute to its durability and performance.

Engine Architecture
  • 2.5-liter displacement
  • V6 configuration with 60-degree angle
  • Aluminum block and cylinder heads
  • Dual overhead camshafts (DOHC)
  • 24-valve design
Advanced Technologies
  • Dual Variable Valve Timing with intelligence (VVT-i)
  • Electronic throttle control system
  • High-compression ratio for improved efficiency
  • Lightweight components for reduced overall weight
  • Enhanced cooling system for optimal temperature management

Maintenance and Care

Proper maintenance is crucial for the longevity and performance of the 2.5L V6 engine. This section provides guidelines for routine maintenance, recommended service intervals, and tips for keeping the engine in peak condition.

Routine Maintenance
  • Oil change interval: every 5,000 miles or 6 months
  • Use of synthetic 5W-30 engine oil recommended
  • Regular air filter replacement
  • Spark plug replacement every 60,000 miles
  • Coolant flush every 30,000 miles
Common Issues and Troubleshooting
  • Monitor for oil leaks around gaskets
  • Check for unusual engine noises or vibrations
  • Inspect timing belt condition periodically
  • Ensure fuel injectors are clean and functioning properly
  • Address any check engine light warnings promptly

Engine Specifications

Overview

Type
Naturally Aspirated V6
Configuration
60-degree V6
Displacement
2.5 liters (2499 cc)
Material
Aluminum block and heads
Location
Front longitudinal

Dimensions

Length
22.4 inches (569 mm)
Width
26.8 inches (681 mm)
Height
21.3 inches (541 mm)
Weight
348 lbs (158 kg)
Bore
3.7 inches (94 mm)
Stroke
3.07 inches (78 mm)
Compression Ratio
10.8:1

Materials

Block
Aluminum alloy
Cylinder Heads
Aluminum alloy
Pistons
Forged aluminum
Crankshaft
Forged steel
Valves
Titanium intake, steel exhaust

Features

Fuel System
  • Sequential multi-port fuel injection
  • Electronic throttle control
  • Variable fuel pressure
Ignition System
  • Direct ignition system
  • Iridium-tipped spark plugs
  • Individual coil packs
Valvetrain
  • Dual overhead camshafts (DOHC)
  • Variable Valve Timing with intelligence (VVT-i)
  • 24 valves (4 per cylinder)
Cooling System
  • Electric cooling fan
  • High-capacity radiator
  • Coolant temperature sensor
Lubrication System
  • Full-flow oil filter
  • High-pressure oil pump
  • Oil cooler

Safety Features

Engine Protection
  • Knock sensor
  • Over-rev protection
  • Low oil pressure warning
Emission Control
  • Catalytic converter
  • Exhaust gas recirculation (EGR)
  • Oxygen sensors

Comfort Features

Noise Reduction
  • Acoustic engine cover
  • Hydraulic engine mounts
  • Optimized intake manifold
Smooth Operation
  • Balanced crankshaft
  • Dual-mass flywheel
  • Precision-engineered camshafts

Accessories

Engine Bay
  • High-capacity battery
  • Accessory drive belts
  • Engine cover
Cooling System
  • Radiator
  • Coolant reservoir
  • Thermostat
Exhaust System
  • Exhaust manifold
  • Catalytic converter
  • Muffler

Maintenance

Service interval
Every 5000 miles or 6 months
Service Items
  • Oil and filter change
  • Air filter inspection
  • Spark plug inspection
  • Coolant level check
  • Belt tension check
Maintenance Notes
Use synthetic oil for optimal performance

Warranty

Basic Warranty
Miles: 50000
Years: 4
Coverage: Bumper to bumper
Powertrain Warranty
Miles: 70000
Years: 6
Coverage: Engine, transmission, drivetrain
Corrosion Warranty
Miles: Unlimited
Years: 6
Coverage: Perforation
Emission Warranty
Miles: 80000
Years: 8
Coverage: Federal emission components

Production Details

Manufacturer
Toyota Motor Corporation
Manufacturing Process
  • Precision casting
  • CNC machining
  • Automated assembly
Quality Control
inspection: 100% engine testing
Tolerances: Micron-level precision
Testing: Dyno and road simulation
Sustainability Practices
  • Recycled aluminum
  • Low-emission manufacturing
  • Energy-efficient processes
Production Metrics
Units Per Day: 500
Defect Rate: 0.01%
Lead Time: 5 days

Service Information for 2.5l v6 engine Service

Maintenance and service requirements specific to this component

5000
6
  • Oil and filter change
  • Air filter inspection
  • Spark plug inspection
  • Coolant level check
  • Belt tension check

Use synthetic oil for optimal performance

30000
36
  • Replace air filter
  • Inspect and adjust drive belts
  • Check ignition system
  • Inspect fuel system
  • Test battery

Ensure all connections are secure

60000
72
  • Replace spark plugs
  • Flush and replace coolant
  • Inspect and replace drive belts if necessary
  • Check and adjust valve clearance
  • Inspect exhaust system

Critical to maintain engine performance and efficiency

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 2.5L V6 engine compatible with other Lexus models?

The 2.5L V6 engine used in the 2006-2013 Lexus IS is specifically designed for this model series. While it may share some components with other Lexus engines, it is not directly compatible with other models due to differences in mounting points, electronics, and performance tuning. Always verify compatibility with a certified technician or Lexus dealer before attempting any cross-model installations.

Q2

What are the maintenance requirements for the 2.5L V6 engine?

The 2.5L V6 engine requires regular maintenance to ensure optimal performance. Key tasks include oil changes every 5,000 miles, air filter replacement every 15,000 miles, and spark plug replacement every 60,000 miles. Additionally, inspect the timing belt, coolant, and hoses at 90,000-mile intervals. Adhering to the manufacturer’s maintenance schedule is crucial for longevity and reliability.

Q3

How do I replace the timing belt on the 2.5L V6 engine?

Replacing the timing belt on the 2.5L V6 engine involves several steps: First, disconnect the battery and remove the engine cover. Drain the coolant and remove the serpentine belt. Next, remove the crankshaft pulley and timing belt cover. Align the timing marks, remove the old belt, and install the new one. Reassemble all components and refill the coolant. Refer to the service manual for detailed torque specifications.

Q4

What should I do if the engine is overheating?

If the engine overheats, immediately turn off the air conditioning and turn on the heater to reduce engine load. Stop the vehicle as soon as it’s safe and let the engine cool. Check the coolant level and inspect for leaks. A faulty thermostat, water pump, or radiator fan could be the cause. If the issue persists, consult a certified technician for further diagnosis.

Q5

How can I optimize the performance of the 2.5L V6 engine?

To optimize performance, use high-quality synthetic oil and ensure regular maintenance. Upgrade the air intake and exhaust systems for better airflow. Consider a performance tune to enhance power and fuel efficiency. Always use premium fuel to maintain engine health. Avoid aggressive driving and ensure the engine is properly warmed up before high-RPM use.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Lexus IS 2006-2013 Service Manual

Coming Soon

Comprehensive guide covering all aspects of maintenance, repair, and troubleshooting for the Lexus IS 2006-2013 models.

Technical Service Bulletin for 2.5L V6 Engine

Coming Soon

Latest updates and fixes for known issues with the 2.5L V6 engine, including recalls and service recommendations.

Lexus IS Parts and Accessories Catalog

Coming Soon

Detailed catalog of OEM parts and accessories specifically designed for the Lexus IS 2006-2013 models.

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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.
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  • If you're unsure about any procedure, consult a qualified professional mechanic.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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