The Powertrain of the Hyundai Grand Starex are as follow:
| Variants | 2018 Hyundai Grand Starex 2.5GLS CRDi VGT Royale Deluxe | 2018 Hyundai Grand Starex 2.5GLS CRDi VGT Royale Premium |
| Capacity (L) | 2.5L | 2.5L |
| Aspiration Form | Naturally-aspirated | Naturally-aspirated |
| Cylinder Arrangement | Inline | Inline |
| Number of Cylinders | 4 | 4 |
| Compression Ratio | 17.6:1 | 17.6:1 |
| Valvetrain | DOHC | DOHC |
| Timing Type | ||
| Horsepower (PS) | 170 | 170 |
| Rpm at Max Hp | 3800 | 3800 |
| Torque(Nm) | 392 | 392 |
| Rpm at Max torque | 2000 | 2000 |
| Top Speed (km/h) | ||
| Fuel | Diesel | Diesel |
