The Hyundai G6AV 2.5-liter V6 gasoline engine was produced by the company from 1995 to 2005 and was installed on the Grandeur and Dynasty, as well as Marcia, a version of the Sonata for the local market. This power unit is essentially a clone of the 24-valve version of the Mitsubishi 6G73 engine.
The Sigma family also included engines: 2.5 L – G6AV; 3.0 L – G6AT, G6CT; 3.5 L – G6AU, G6CU.
The engine was installed 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 engines of the first years had problems with the quality of the assembly and its components.
- A typical story is the cranking of the liners and the wedge of the motor at a mileage of 100,000 km.
- Power units after 2000 are more reliable, but are very rare.
- Most of the complaints on the specialized forums are related to the oil burner and the contamination of the injectors.
- The weak points of the engine also include the ignition system and hydraulic lifters.
