Engine Hyundai-Kia G4KR

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.


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
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.

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