Popular concern models like the Santa Fe, Staria, Sorento, and Carnival are equipped with the 3.5-liter V6 Hyundai G6DU or Smartstream G 3.5 MPi engine, which has been manufactured since 2020. The Smartstream L 3.5 LPi gas version of this engine is highly well-liked in Korea.

Lambda 3.5L family: G6DC, G6DS, G6DU, G6DT, G6DV.
The engine was installed on:
- Hyundai Santa Fe 4 (TM) since 2020;
- Hyundai Staria 1 (US4) since 2021;
- Kia Carnival 4 (KA4) since 2020;
- Kia K8 1 (GL3) since 2021;
- Kia Sorento 4 (MQ4) since 2020.
Specifications
| Production years | since 2020 |
| Displacement, cc | 3470 |
| Fuel system | distributed injection |
| Power output, hp | 250 – 272 |
| Torque output, Nm | 331 |
| Cylinder block | aluminum V6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 92 |
| Piston stroke, mm | 87 |
| Compression ratio | 10.6 |
| Features | VIS |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | Dual CVVT |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 6.1 |
| Fuel type | petrol |
| Euro standards | EURO 5/6 |
| Fuel consumption, L/100 km (for Kia Carnival 2022) — city — highway — combined |
14.6 7.8 10.3 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 202 (with attachments) |
Disadvantages of the Hyundai G6DU engine
On specialized forums, he receives recognition for his moderate fuel usage, among other things.
Keeping an eye on the cooling system is crucial because aluminum units are prone to overheating;
I’m still interested in oil consumption because it’s the primary issue with engines in this series; hydraulic lifters have finally been introduced, and valve clearance adjustment is not necessary.
