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.
Specifications
| 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 |
9.2 5.3 6.4 |
| 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.
Frequently asked questions about the Hyundai G4FS
How much power does the Hyundai G4FS make?
The Hyundai G4FS develops 170 - 200 hp and 253 Nm of torque.
How much oil does the Hyundai G4FS take and which one?
Engine oil capacity: 4.8 liters. Recommended oil: 0W-20.
Does the Hyundai G4FS have a timing belt or chain?
The Hyundai G4FS uses a timing chain.
Is the Hyundai G4FS turbocharged?
Yes, the Hyundai G4FS is turbocharged.
Does the Hyundai G4FS need valve clearance adjustment?
No, the Hyundai G4FS has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Hyundai G4FS last?
The typical lifespan of the Hyundai G4FS is ~220 000 km with proper maintenance.
What is the fuel consumption of the Hyundai G4FS?
Hyundai Custo 2021: city 9.2, highway 5.3, combined 6.4 L/100 km.
What cars was the Hyundai G4FS 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.
What are the common problems of the Hyundai G4FS?
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. All known problems.
