Since 2020, the company’s rear-wheel drive models, such as the Kia Stinger and Genesis crossovers, have been equipped with the 2.5-liter Hyundai G4KR or Smartstream 2.5 FR T-GDi engine. The presence of a combined injection system GDi + MPi sets this motor apart from its equivalents.
Theta 2.5 L family: G4KM, G4KN, G4KP, and G4KR.
The engine was mounted 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
There are currently no failure statistics available for this power unit, which was just introduced;
Here, the issue of valve coking is resolved by the combined injection;
Although the timing chains’ resource is unknown, they are typically swiftly removed from a turbo engine;
It turned out that the engine was extremely hot, so you will need to keep an eye on the cooling system;
Reliability is not increased by oil pump units with variable displacement.