The company produced the 4.5-liter gasoline V8 engine Hyundai G8AB from 2003 to 2008 and put it on the restyled Equus of the first generation or a Centennial limousine similar to it. This motor was only a modification of the Mitsubishi 8A80 with distributed fuel injection.
Omega family: G8AA, G8AB.
Specifications
| Production years | 2003-2008 |
| Displacement, cc | 4498 |
| Fuel system | distributed injection |
| Power output, hp | 270 |
| Torque output, Nm | 375 |
| Cylinder block | aluminum V8 |
| Block head | aluminum 32v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 96.8 |
| Compression ratio | 10.0 |
| Features | VIS |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.8 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Hyundai Centennial 2005) — city — highway — combined |
20.7 10.1 13.0 |
| Engine lifespan, km | ~350 000 |
| Weight, kg | 223 (with attachments) |
The engine was installed on:
- Hyundai Equus 1 (LZ) in 2003 – 2008.
Disadvantages of the Hyundai G8AB engine
- This is a completely reliable and resource unit, but its fuel consumption is too big;
- Catalysts do not tolerate bad gasoline and can fall apart as early as 100,000 km;
- Monitor the condition of the timing belt, as its breakage is usually fatal for the motor;
- But the main problem of the engine is the almost complete lack of spare parts.
Frequently asked questions about the Hyundai G8AB
How much power does the Hyundai G8AB make?
The Hyundai G8AB develops 270 hp and 375 Nm of torque.
How much oil does the Hyundai G8AB take and which one?
Engine oil capacity: 5.8 liters. Recommended oil: 5W-30.
Does the Hyundai G8AB have a timing belt or chain?
The Hyundai G8AB uses a timing belt.
Is the Hyundai G8AB turbocharged?
No, the Hyundai G8AB is naturally aspirated.
Does the Hyundai G8AB need valve clearance adjustment?
No, the Hyundai G8AB has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Hyundai G8AB last?
The typical lifespan of the Hyundai G8AB is ~350 000 km with proper maintenance.
What is the fuel consumption of the Hyundai G8AB?
Hyundai Centennial 2005: city 20.7, highway 10.1, combined 13.0 L/100 km.
What cars was the Hyundai G8AB installed on?
Hyundai Equus 1 (LZ) in 2003 - 2008.
What are the common problems of the Hyundai G8AB?
This is a completely reliable and resource unit, but its fuel consumption is too big. Catalysts do not tolerate bad gasoline and can fall apart as early as 100,000 km. All known problems.
What engines are related to the Hyundai G8AB?
Omega family: G8AA.





