From 1995 to 2005, the company produced the Hyundai G6AV 2.5-liter V6 gasoline engine, which was fitted to the Grandeur, Dynasty, and Marcia, a local market version of the Sonata. In essence, this power unit is a replica of the Mitsubishi 6G73 engine with 24 valves.
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 Dynasty 1 (LX) in 1996 – 2005;
- Hyundai Grandeur 2 (LX) in 1995 – 1998;
- Hyundai Sonata 3 (Y3) in 1995 – 1998.
Specifications
| Production years | 1995-2005 |
| Displacement, cc | 2497 |
| Fuel system | distributed injection |
| Power output, hp | 160 – 170 |
| Torque output, Nm | 205 – 225 |
| Cylinder block | cast iron V6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 83.5 |
| Piston stroke, mm | 76 |
| Compression ratio | 10.0 |
| Features | DOHC |
| 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 Grandeur 1997) — city — highway — combined |
15.6 9.5 11.8 |
| Engine lifespan, km | ~200 000 |
| Weight, kg | 175 |
Disadvantages of the Hyundai G6AV engine
The quality of the assembly and its parts was a problem for the engines in the early years.
The cranking of the motor’s wedge and liners after 100,000 kilometers is a common tale.
Although they are extremely uncommon, power units manufactured after 2000 are more dependable.
The oil burner and injector contamination are the main causes of complaints on the specialized forums.
The engine’s hydraulic lifters and ignition system are also weak points.