The 3.0-liter gasoline V6 engine Hyundai G6AT was produced by the company from 1990 to 2003 and was installed on such popular concern models as the Sonata sedan and Galloper SUVs. This power unit in its design was a clone of the famous Mitsubishi 6G72 engine.
Sigma family:
2.5 L – G6AV;
3.0 L – G6AT, G6CT;
3.5 L – G6AU, G6CU.
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 |
The engine was installed 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.
Disadvantages of the Hyundai G6AT engine
- The motors of the first years of production had poor build quality and some components;
- Especially often, the engines of this line were wedged due to poor-quality liners;
- Then the quality increased and now these power units are scolded only for the oil burner;
- Also on the specialized forums there are a lot of complaints about floating speed due to throttle contamination;
- Weaknesses include short-lived hydraulic lifters and ignition system.
Frequently asked questions about the Hyundai G6AT
How much power does the Hyundai G6AT make?
The Hyundai G6AT develops 141 - 161 hp and 220 - 250 Nm of torque.
How much oil does the Hyundai G6AT take and which one?
Engine oil capacity: 4.6 liters. Recommended oil: 5W-40.
Does the Hyundai G6AT have a timing belt or chain?
The Hyundai G6AT uses a timing belt.
Is the Hyundai G6AT turbocharged?
No, the Hyundai G6AT is naturally aspirated.
Does the Hyundai G6AT need valve clearance adjustment?
No, the Hyundai G6AT has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Hyundai G6AT last?
The typical lifespan of the Hyundai G6AT is ~220 000 km with proper maintenance.
What is the fuel consumption of the Hyundai G6AT?
Hyundai Galloper 1995: city 19.0, highway 10.8, combined 14.3 L/100 km.
What cars was the Hyundai G6AT installed 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.
What are the common problems of the Hyundai G6AT?
The motors of the first years of production had poor build quality and some components. Especially often, the engines of this line were wedged due to poor-quality liners. All known problems.
