The Lexus 4GR-FSE is a 2,499 cc, naturally aspirated V6 petrol engine produced between 2005 and 2012. It features Toyota's D-4S combined direct and port fuel injection system, dual VVT-i for intake and exhaust camshafts, and an aluminium block and heads. In standard form, it delivered approximately 153 kW (207 PS) and 252 Nm of torque, providing a smooth and linear power delivery characteristic of Lexus V6 engines.
Fitted primarily to the IS 250 (GSE20/25) and GS 250 (GRL10/15) sedans, the 4GR-FSE was engineered for refined, quiet operation and responsive throttle feel. Emissions compliance for its production period was achieved through precise fuel metering and efficient combustion, meeting Euro 4 standards across its core markets.
One documented area for attention is carbon buildup on the intake valves, a known characteristic of direct-injection engines without significant port fuel washing. While not typically causing immediate failure, this can lead to rough idling or reduced performance over very high mileages if not addressed. Toyota service documentation outlines cleaning procedures for maintenance.
Production years 2005–2012 meet Euro 4 standards (EU Regulation (EC) No 715/2007).
The Lexus 4GR-FSE is a 2,499 cc V6 petrol engine engineered for mid-size luxury sedans (2005-2012). It combines D-4S dual injection with dual VVT-i variable valve timing to deliver smooth, linear power and refined operation. Designed to meet Euro 4 standards, it prioritizes drivability and quietness over ultimate economy.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,499 cc | |
| Fuel type | Petrol | |
| Configuration | V6, DOHC, 24-valve | |
| Aspiration | Naturally Aspirated | |
| Bore × stroke | 87.5 mm × 69.2 mm | |
| Power output | 153 kW (207 PS) @ 6,400 rpm | |
| Torque | 252 Nm @ 4,800 rpm | |
| Fuel system | D-4S (Direct & Port Injection) | |
| Emissions standard | Euro 4 | |
| Compression ratio | 12.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven | |
| Oil type | Toyota Genuine Motor Oil 5W-30 | |
| Dry weight | 165 kg |
The D-4S injection provides strong, smooth power but requires periodic intake valve cleaning to mitigate carbon buildup inherent to direct injection systems. Using high-quality, low-ash oil (Toyota 5W-30) is recommended to maintain engine cleanliness and protect components. The chain-driven valvetrain is generally robust and designed for the engine's lifespan, requiring no scheduled replacement. Fuel economy is moderate for its class, reflecting its focus on refinement over efficiency.
Oil Specs: Requires Toyota Genuine Motor Oil 5W-30 or equivalent meeting ILSAC GF-4/API SM (Toyota Owner's Manual).
Emissions: Euro 4 certification applies to all 2005-2012 models (EU Regulation (EC) No 715/2007).
Power Ratings: Measured under SAE J1349 standards. Output consistent across specified model range (Toyota TIS Doc. GR-45021).
Toyota Technical Information System (TIS): Docs GR-45021, GR-45103
Toyota Electronic Parts Catalogue (EPC): Doc. GR-FSE-001
EU Regulation (EC) No 715/2007
SAE International: J1349 Engine Power Certification Standards
The Lexus 4GR-FSE was used across Lexus's GSE2x/GRL1x platforms with longitudinal mounting. This engine received platform-specific adaptations-tuned intake and exhaust for the GS 250 for a slightly different character-and no major facelift revisions affecting core compatibility within its production run. All applications are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the engine block, near the timing cover (Toyota TIS GR-45001). The 8th VIN digit for Lexus IS/GS 250 models is 'G', indicating the GR engine family. Visually, the engine features a distinctive black plastic intake manifold with 'D-4S' branding. Differentiation from the larger 2GR-FSE is by displacement (2.5L vs 3.5L) and specific intake manifold design. Engine management components are generally consistent across model years.
The 4GR-FSE is generally robust, with its primary long-term consideration being intake valve carbon buildup. Toyota service data indicates this is a gradual process, rarely causing failure but potentially affecting drivability after 150,000 km. Extended oil change intervals or low-quality fuel can accelerate this, making adherence to maintenance schedules critical.
Analysis derived from Toyota technical bulletins (2005-2012) and EU type-approval documentation. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about LEXUS 4GR-FSE.
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