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,…
Production years 2012–2017 meet Euro 5 standards; 2018–2023 models meet Euro 6 standards .
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 | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 184 kg |
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.
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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.
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The 2GR-FKS delivers strong performance and refinement when properly maintained, but early models (2012–2017) are prone to carbon buildup on intake valves due to direct injection. Post-2018 revisions improved intake port design to mitigate this. Regular induction cleaning every 40,000 km and strict adherence to 0W-20 oil changes greatly enhance longevity and prevent costly repairs.
The most common issues are carbon buildup on intake valves (causing misfires), timing chain tensioner rattle on early builds, intake manifold gasket leaks, and PCV system failures that accelerate valve deposits. These are well-documented in Lexus Service Information Bulletin G178 and TIS documentation.
The 2GR-FKS engine was used in the Lexus IS 350 (2012–2020), GS 350 (2012–2020), RC 350 (2014–2023), and NX 350 (2018–2023). It replaced the 2GR-FE in these applications and was never licensed to other manufacturers. The NX 350 variant includes revised intake port geometry introduced in 2018.
Aftermarket ECU tuning is common on the 2GR-FKS platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Typical real-world fuel economy is approximately 10.5 L/100km (27 mpg UK) combined for the IS 350 and GS 350, rising to 11.2 L/100km (25 mpg UK) for the heavier RC 350. The NX 350 achieves around 9.8 L/100km (29 mpg UK) due to optimized gearing and aerodynamics. Economy drops significantly with carbon buildup or neglected maintenance.
Yes. The 2GR-FKS is an interference engine. If the timing chain fails or jumps, pistons can contact open valves, resulting in catastrophic engine damage. Timely inspection and replacement of the timing chain components per TIS Doc. A33201 is critical to prevent this.
Lexus specifies Toyota Genuine Oil 0W-20 meeting API SN or higher and ILSAC GF-5 specifications (Lexus SIB G178). This low-viscosity synthetic oil ensures proper lubrication of the direct injection system and hydraulic valve lifters. Oil changes must occur every 10,000 km or 12 months, whichever comes first.
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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