The 2.5-liter Hyundai G4KR or Smartstream 2.5 FR T-GDi engine has been produced since 2020 and is installed on rear-wheel drive models of the company like Kia Stinger and Genesis crossovers. This motor differs from analogues in the presence of a combined injection system GDi + MPi.
Theta 2.5 L family: G4KM, G4KN, G4KP, G4KR.
The engine was installed on:
- Kia Stinger 1 (CK) since 2020;
- Genesis GV70 1 (JK1) since 2020;
- Genesis GV80 1 (JX1) since 2020;
- Genesis G80 2 (RG3) since 2020.
Specifications
| Production years | since 2020 |
| Displacement, cc | 2497 |
| Fuel system | GDi + MPi |
| Power output, hp | 304 |
| Torque output, Nm | 422 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 88.5 |
| Piston stroke, mm | 101.5 |
| Compression ratio | 10.5 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | Dual CVVT |
| Turbocharging | yes |
| Recommended engine oil | 0W-30 |
| Engine oil capacity, liter | 6.2 |
| Fuel type | petrol |
| Euro standards | EURO 5/6 |
| Fuel consumption, L/100 km (for Kia Stinger 2021) — city — highway — combined |
10.2 7.4 8.8 |
| Engine lifespan, km | ~200 000 |
Disadvantages of the Hyundai G4KR engine
- This power unit has appeared recently and there are no failure statistics for it yet;
- The presence of combined injection here solves the problem of valve coking;
- While the resource of timing chains is unknown, usually they are quickly pulled out at a turbo engine;
- The engine turned out to be very hot and you will need to monitor the cooling system;
- Variable displacement oil pump units do not add reliability.
