From 1990 to 2003, the company produced the 3.0-liter gasoline V6 Hyundai G6AT engine, which was fitted to well-known concern models like the Galloper SUV and Sonata sedan. The well-known Mitsubishi 6G72 engine served as the model for this power unit.
The 2.5 L G6AV, 3.0 L G6AT, G6CT, and 3.5 L G6AU, G6CU engines were also part of the Sigma family.
The engine was mounted on:
- Hyundai Galloper 1 (JI) in 1991 – 1997; Galloper 2 (JK) in 1997 – 2003;
- Hyundai Sonata 2 (Y2) in 1990 – 1993; Sonata 3 (Y3) in 1993 – 1998.
Specifications
| Production years | 1990-2003 |
| Displacement, cc | 2972 |
| Fuel system | distributed injection |
| Power output, hp | 141 – 161 |
| Torque output, Nm | 220 – 250 |
| Cylinder block | cast iron V6 |
| Block head | aluminum 12v |
| Cylinder bore, mm | 91.1 |
| Piston stroke, mm | 76 |
| Compression ratio | 8.9 |
| Features | SOHC |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 4.6 |
| Fuel type | petrol |
| Euro standards | EURO 2 |
| Fuel consumption, L/100 km (for Hyundai Galloper 1995) — city — highway — combined |
19.0 10.8 14.3 |
| Engine lifespan, km | ~220 000 |
| Weight, kg | 169.3 |
Disadvantages of the Hyundai G6AT engine
In the early years of production, the motors’ construction and certain parts were of poor quality;
This line’s engines were particularly frequently wedged as a result of subpar liners;
After that, the quality improved, and these power units are now only reprimanded for the oil burner;
Additionally, there are numerous complaints regarding throttle contamination-related floating speed on the specialized forums;
The ignition system and short-lived hydraulic lifters are weaknesses.