The 3.8-liter gasoline engine Hyundai G6DJ or Genesis 3.8 GDi has been produced since 2011 and is installed on many rear-wheel drive models of the company, especially under the Genesis brand. This motor is also found under the hood of executive class sedans such as Equus and Quoris.
Lambda 3.8L family: G6DA, G6DJ, G6DK, G6DN.
Specifications
| Production years | since 2011 |
| Displacement, cc | 3778 |
| Fuel system | direct injection |
| Power output, hp | 311 – 353 |
| Torque output, Nm | 395 – 400 |
| Cylinder block | aluminum V6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 96 |
| Piston stroke, mm | 87 |
| Compression ratio | 11.5 |
| Features | VIS |
| Hydraulic lifters | no |
| Timing drive | chain |
| Phase regulator | Dual CVVT |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 6.9 (there are versions with a pallet of 5.7 liters) |
| Fuel type | petrol |
| Euro standards | EURO 5 |
| Fuel consumption, L/100 km (for Hyundai Genesis 2015) — city — highway — combined |
15.1 8.6 10.3 |
| Engine lifespan, km | ~320 000 |
| Weight, kg | 221 (with attachments) |
The engine was installed on:
- Hyundai G80 1 (DH) in 2016 – 2020;
- Hyundai G90 1 (HI) since 2015;
- Hyundai Equus 2 (VI) in 2011 – 2016;
- Hyundai Genesis 1 (BH) in 2011 – 2014, Genesis 2 (DH) in 2013 – 2016;
- Hyundai Genesis Coupe 1 (BK) in 2012 – 2016;
- Kia Quoris 1 (KH) in 2012 – 2018;
- Kia K900 2 (RJ) since 2018.
Disadvantages of the Hyundai G6DJ engine
- First of all, units with GDi injection suffer from carbon deposits on the intake valves;
- Also, the occurrence of piston rings and the subsequent oil burner are often found here;
- Keep the cooling system clean, the aluminum block prevents overheating;
- On long runs, timing chains can stretch, and replacing them will be expensive;
- And do not forget to adjust the valve clearance, since there are no hydraulic lifters here.
Frequently asked questions about the Hyundai-Kia G6DJ
How much power does the Hyundai-Kia G6DJ make?
The Hyundai-Kia G6DJ develops 311 - 353 hp and 395 - 400 Nm of torque.
How much oil does the Hyundai-Kia G6DJ take and which one?
Engine oil capacity: 6.9 (there are versions with a pallet of 5.7 liters) liters. Recommended oil: 5W-30.
Does the Hyundai-Kia G6DJ have a timing belt or chain?
The Hyundai-Kia G6DJ uses a timing chain.
Is the Hyundai-Kia G6DJ turbocharged?
No, the Hyundai-Kia G6DJ is naturally aspirated.
Does the Hyundai-Kia G6DJ need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Hyundai-Kia G6DJ last?
The typical lifespan of the Hyundai-Kia G6DJ is ~320 000 km with proper maintenance.
What is the fuel consumption of the Hyundai-Kia G6DJ?
Hyundai Genesis 2015: city 15.1, highway 8.6, combined 10.3 L/100 km.
What cars was the Hyundai-Kia G6DJ installed on?
Hyundai G80 1 (DH) in 2016 - 2020; Hyundai G90 1 (HI) since 2015; Hyundai Equus 2 (VI) in 2011 - 2016; Hyundai Genesis 1 (BH) in 2011 - 2014, Genesis 2 (DH) in 2013 - 2016; Hyundai Genesis Coupe 1 (BK) in 2012 - 2016; Kia Quoris 1 (KH) in 2012 - 2018 and 1 more (see the full list above).
What are the common problems of the Hyundai-Kia G6DJ?
First of all, units with GDi injection suffer from carbon deposits on the intake valves. Also, the occurrence of piston rings and the subsequent oil burner are often found here. All known problems.
