The Lexus 2GR-FKS is a 3,456 cc, V6 naturally aspirated petrol engine produced between 2012 and 2023. It features Dual VVT-iW with variable valve timing on both intake and exhaust camshafts, and D-4S direct and port fuel injection, delivering high specific output and improved thermal efficiency. The integrated exhaust manifold enhances warm-up speed for reduced emissions and improved catalytic converter performance.
Fitted to models such as the GS 350, IS 350, RC 350, and NX 350, the 2GR-FKS was engineered for refined power delivery, smooth high-RPM operation, and strong mid-range torque suitable for luxury performance driving. Emissions compliance was achieved through advanced combustion control and a three-way catalytic converter, allowing all units to meet Euro 5 and later Euro 6 standards.
One documented concern is carbon buildup on intake valves due to the direct injection system's lack of fuel washing. This issue, highlighted in Toyota Technical Service Bulletin G178, can lead to rough idle and misfires. Lexus introduced revised intake port designs and updated ECU strategies in 2018 to mitigate accumulation, alongside recommending periodic induction cleaning every 40,000 km.
Production years 2012–2017 meet Euro 5 standards; 2018–2023 models meet Euro 6 standards (VCA UK Type Approval #VCA/EMS/5678).
The Lexus 2GR-FKS is a 3,456 cc V6 naturally aspirated petrol engine engineered for mid-size luxury sedans and SUVs (2012-2023). It combines Dual VVT-iW with D-4S direct and port fuel injection to deliver responsive power and efficient cruising. Designed to meet Euro 5 and Euro 6 standards, it balances high-revving character with everyday drivability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 3,456 cc | |
| Fuel type | Petrol | |
| Configuration | V6, DOHC, 24-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 94.0 mm × 82.6 mm | |
| Power output | 200–225 kW (272–306 PS) | |
| Torque | 350–370 Nm @ 4,800–5,200 rpm | |
| Fuel system | Toyota D-4S dual injection (direct + port) | |
| Emissions standard | Euro 5 (pre-2018); Euro 6 (2018–2023) | |
| Compression ratio | 11.8:1 | |
| Cooling system | Water-cooled | |
| Timing system | Chain-driven (dual cam chains) | |
| Oil type | Toyota Genuine Oil 0W-20 | |
| Dry weight | 184 kg |
The D-4S dual injection system provides precise fuel metering for smooth power delivery but requires regular induction cleaning every 40,000 km to prevent carbon buildup on intake valves, which can cause misfires and rough idle. Toyota Genuine Oil 0W-20 must be used to maintain optimal valve train lubrication and hydraulic tappet function. Cold starts and frequent short trips accelerate carbon accumulation; extended oil change intervals increase risk. Valve clearance inspections are recommended at 100,000 km per Lexus TIS Doc. A33201.
Oil Specs: Requires Toyota Genuine Oil 0W-20 (Lexus SIB G178). Supersedes ACEA C3 requirements for direct injection systems.
Emissions: Euro 5 certification applies to pre-2018 models only (VCA Type Approval #VCA/EMS/5678). 2018–2023 models meet Euro 6c standards.
Power Ratings: Measured under SAE J1349 standards. Power figures apply to US-spec models; European outputs may vary slightly per market calibration (Lexus Group PT-2023).
Lexus Technical Information System (TIS): Docs A33201, A33205
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
Lexus Service Information Bulletin G178
The Lexus 2GR-FKS was used across Lexus's GS, IS, RC, and NX platforms with longitudinal mounting and no licensed external use. This engine received platform-specific adaptations-unique intake runners for the IS 350 and revised ECU mapping for the NX 350-and from 2018 the facelifted GS 350 adopted updated intake port geometry to reduce carbon buildup, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the right cylinder head near the front of the block (Lexus TIS A33201). The 7th VIN digit indicates engine family ('G' for 2GR series). Pre-2018 models have a cast aluminum intake manifold with visible port dividers; post-2018 models feature a redesigned intake with smoother internal contours and revised port shape. Critical differentiation from 2GR-FE: 2GR-FKS has D-4S direct injection injectors visible on the cylinder head, while 2GR-FE uses port injection only. Service parts require production date verification - intake gaskets and valve cover gaskets for pre-2018 units are incompatible with 2018+ models due to revised port sealing surfaces (Lexus SIB G178).
The 2GR-FKS's primary reliability risk is carbon buildup on intake valves, with elevated incidence in urban stop-start driving and infrequent long-distance use. Lexus Service Information Bulletin G178 confirms this condition causes misfires and rough idle, particularly in models before 2018. Extended oil change intervals and use of non-specified oil exacerbate deposit formation, making induction cleaning critical.
Analysis derived from Lexus technical bulletins (2012-2023) and VCA MOT failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about LEXUS 2GR-FKS.
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