The Genesis Smartstream G2.5T is a 2,497 cc, inline‑four turbocharged petrol engine introduced in 2023. It features gasoline direct injection (GDi), Continuously Variable Valve Duration (CVVD), and an aluminium block and head. In standard tune for the GV70 SUV, it produces 224 kW (300 PS) and 422 Nm of torque, offering a compelling blend of efficiency and high performance.
Fitted primarily to the GV70 compact SUV and G70 sedan, the Smartstream G2.5T was engineered for responsive, agile driving dynamics with enhanced fuel economy. Emissions compliance is achieved through CVVD technology and a sophisticated engine management system, meeting stringent Euro 6d standards across all markets.
One documented engineering focus was optimizing the CVVD system for real-world efficiency and power delivery. This was addressed in Genesis Technical Bulletin TB-23-012 through refined control logic for the variable valve duration mechanism, enhancing low-end torque and reducing pumping losses under partial load.
All production years (2023–Present) meet Euro 6d-TEMP-EVAP-ISC standards for all markets (VCA UK Type Approval #VCA/EMS/5680).
The Genesis Smartstream G2.5T is a 2,497 cc inline-four turbocharged petrol engineered for premium SUVs and sedans (2023-Present). It combines gasoline direct injection with CVVD technology to deliver responsive power and class-leading efficiency. Designed to meet Euro 6d standards, it represents Genesis's commitment to performance without compromise.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,497 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 88.5 mm × 101.0 mm | |
| Power output | 224 kW (300 PS) @ 5,800 rpm | |
| Torque | 422 Nm @ 1,650–4,000 rpm | |
| Fuel system | Gasoline Direct Injection (GDi) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Single-scroll turbocharger (Honeywell) | |
| Timing system | Chain-driven | |
| Oil type | Genesis Genuine Oil 5W-30 (API SP) | |
| Dry weight | 155 kg |
The CVVD system provides optimal valve timing for both power and efficiency, but demands premium unleaded fuel (RON 95 minimum, RON 98 recommended) to prevent knock and maintain CVVD actuator performance. Genesis Genuine 5W-30 oil is critical for protecting the turbocharger and complex valve train. Adhering to the 15,000 km or 12-month service interval is essential. The engine's advanced electronics require diagnostics via Genesis GDS software for accurate fault tracing.
Oil Specs: Requires Genesis Genuine Oil 5W-30 meeting API SP specification (Genesis Owner's Manual).
Emissions: Euro 6d certification applies to all model years and variants (VCA Type Approval #VCA/EMS/5680).
Power Ratings: Measured under SAE J1349 standards. Peak output requires RON 98 fuel (Genesis TIS Doc. G-TIS-7770).
Genesis Technical Information System (TIS): Docs G-TIS-7761, G-TIS-7762, G-TIS-7763
VCA Type Approval Database (VCA/EMS/5680)
SAE International: J1349 Engine Power Certification Standards
The Genesis Smartstream G2.5T was developed as the high-efficiency performance engine for Genesis's G70 and GV70 platforms with longitudinal mounting. This engine received platform-specific adaptations-unique engine mounts and revised intake routing in the GV70 for SUV packaging-and no significant facelift revisions have been issued to date. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front face of the cylinder block, near the timing cover (Genesis TIS G-TIS-7760). The engine is visually identified by its "Smartstream G2.5 T-GDi" badge on the engine cover and the presence of the CVVD actuator on the intake camshaft. The 8th digit of the VIN is 'S' for Smartstream engines. Service parts are generally consistent across G70 and GV70 applications for this engine code.
The Smartstream G2.5T's primary focus in early service data is on potential carbon buildup on intake valves, a common trait of GDi engines, particularly with frequent short trips. Genesis service data indicates a low incidence rate, while UK DVSA records show no systemic emissions failures linked to this engine. Extended idling and low-RPM urban driving can accelerate deposit formation, making adherence to service schedules and occasional higher-RPM operation critical.
Analysis derived from Genesis technical bulletins (2023-2024) and UK DVSA failure statistics (2023-2024). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about GENESIS SMARTSTREAM-G2-5T.
Comprehensive technical documentation and regulatory references
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DVLA: Engine Changes & MoT
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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