The Lexus 3GR — FSE is a 2,994 cc, 60° V6 petrol engine produced between 2005 and 2013. It features dual overhead camshafts (DOHC), 24 valves, and Toyota's D — 4S direct and port fuel injection system. This technology enables strong, linear power delivery with improved fuel efficiency and reduced carbon buildup.
Fitted to models such as the GS 300 (GRS190) and IS 300 (GSE21), the 3GR — FSE was engineered for refined performance and quiet operation. Emissions compliance was ac…
Production years 2005–2013 meet Euro 4 standards (EU Regulation (EC) No 715/2007, Annex I).
The Lexus 3GR-FSE is a 2,994 cc V6 petrol engine engineered for executive sedans (2005-2013). It combines DOHC 24-valve architecture with D-4S direct and port injection to deliver smooth, responsive power. Designed to meet Euro 4 standards, it balances performance with refined operation.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,994 cc | |
Fuel type | Petrol | |
Configuration | 60° V6, DOHC, 24-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 87.5 mm × 83.0 mm | |
Power output | 170–173 kW (231–235 PS) | |
Torque | 300–310 Nm @ 3,800 rpm | |
Fuel system | Toyota D-4S (Direct + Port Injection) | |
Emissions standard | Euro 4 | |
Compression ratio | 11.8:1 | |
Cooling system | Water-cooled | |
Turbocharger | None | |
Timing system | Chain-driven | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 165 kg |
The Lexus 3GR-FSE was used across Toyota/Lexus's GRS/GSE platforms with longitudinal mounting. This engine received platform-specific adaptations-such as revised engine mounts and exhaust manifolds for the GS 300 versus the IS 300. All adaptations are documented in OEM technical bulletins.
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The 3GR-FSE's primary reliability consideration is intake valve carbon buildup, a common trait of early direct-injection engines. Toyota service data indicates this can lead to drivability issues if neglected, while the VVT-i system is generally robust. Regular oil changes and periodic intake cleaning are critical for long-term smooth operation.
Analysis derived from Toyota technical bulletins (2005-2013) and EU regulatory compliance data. Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
Yes, the 3GR-FSE is generally a very reliable and robust engine. Its main long-term consideration is carbon buildup on intake valves, which is manageable with periodic cleaning. With regular oil changes and proper maintenance, these engines can easily exceed 200,000 miles without major issues.
The most common issues are intake valve carbon buildup, VVT-i solenoid failures (often due to poor oil maintenance), coolant thermostat failures, and minor oil leaks from valve cover gaskets. These are well-documented in Toyota service information.
The 3GR-FSE was primarily used in the second-generation Lexus GS 300 (GRS190, 2005-2013) and the second-generation Lexus IS 300 (GSE21, 2005-2013). It was also used in some Toyota Crown models (GRS204) in specific markets.
While not as common as tuning the larger 2GR-FSE, the 3GR-FSE can be tuned. ECU remaps can yield modest gains of 10-20 kW. More significant power increases require forced induction (supercharger/turbo), which is complex and expensive due to the engine's design and compression ratio.
Fuel economy is moderate for its era and performance. Expect around 10.5-12.5 L/100km (23-27 mpg UK) in combined driving for a GS 300. Real-world figures vary significantly based on driving style and conditions, with highway driving being much more efficient.
Yes. The 3GR-FSE is an interference engine. If the timing chain were to fail catastrophically (which is rare), the pistons would collide with the open valves, causing severe internal engine damage. Regular maintenance is key to preventing this.
Toyota recommends 5W-30 viscosity oil meeting API SM (or higher) and ILSAC GF-4 (or higher) specifications. Using a high-quality, low-ash synthetic oil is beneficial for protecting the VVT-i system and minimizing carbon deposits.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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