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.
Sigma family:
2.5 L – G6AV;
3.0 L – G6AT, G6CT;
3.5 L – G6AU, G6CU.
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 |
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.
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.
Frequently asked questions about the Hyundai G6AV
How much power does the Hyundai G6AV make?
The Hyundai G6AV develops 160 - 170 hp and 205 - 225 Nm of torque.
How much oil does the Hyundai G6AV take and which one?
Engine oil capacity: 4.6 liters. Recommended oil: 5W-40.
Does the Hyundai G6AV have a timing belt or chain?
The Hyundai G6AV uses a timing belt.
Is the Hyundai G6AV turbocharged?
No, the Hyundai G6AV is naturally aspirated.
Does the Hyundai G6AV need valve clearance adjustment?
No, the Hyundai G6AV has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Hyundai G6AV last?
The typical lifespan of the Hyundai G6AV is ~200 000 km with proper maintenance.
What is the fuel consumption of the Hyundai G6AV?
Hyundai Grandeur 1997: city 15.6, highway 9.5, combined 11.8 L/100 km.
What cars was the Hyundai G6AV installed on?
Hyundai Dynasty 1 (LX) in 1996 - 2005; Hyundai Grandeur 2 (LX) in 1995 - 1998; Hyundai Sonata 3 (Y3) in 1995 - 1998.
What are the common problems of the Hyundai G6AV?
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. All known problems.





