Engine Hyundai G4FS

The 1.5-liter Hyundai G4FS or Smartstream G 1.5 T-GDI engine has been produced since 2019 and is installed on Chinese versions of such popular models as Sonata, Tucson and Sportage. This power unit is also found on concern cars for a number of other Asian countries.

Gamma family: G4FA, G4FL, G4FS, G4FC, G4FD, G4FG, G4FJ, G4FM, G4FP, G4FT, G4FU.


Production years since 2019
Displacement, cc 1497
Fuel system direct injection
Power output, hp 170 – 200
Torque output, Nm 253
Cylinder block aluminum R4
Block head aluminum 16v
Cylinder bore, mm 75.6
Piston stroke, mm 83.4
Compression ratio 10.5
Features CVVD
Hydraulic lifters yes
Timing drive chain
Phase regulator Dual CVVT
Turbocharging yes
Recommended engine oil 0W-20
Engine oil capacity, liter 4.8
Fuel type petrol
Euro standards EURO 6
Fuel consumption, L/100 km (for Hyundai Custo 2021)
— city
— highway
— combined
Engine lifespan, km ~220 000
Weight, kg 106

The engine was installed on:

  • Hyundai Custo 1 (KU) since 2021;
  • Hyundai Mistra 2 (DU2) since 2020;
  • Hyundai Sonata 8 (DN8) since 2019;
  • Hyundai Tucson 4 (NX4) since 2020;
  • Kia K5 3 (DL3) since 2020;
  • Kia Sportage Ace 3 (NP) since 2020.

Disadvantages of the Hyundai G4FS engine

  • On specialized forums, the reviews are not bad, but they only complain about the Start-Stop system.
  • Like all direct injection engines, it suffers from carbon deposits on the intake valves.
  • Also, for engines of this family, the timing chain does not have a very high resource.

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