The 3.0-liter Hyundai D6JA or Genesis 3.0 CRDi engine has been produced by the concern since 2020 and is currently installed on the only Genesis model: the GV80 executive crossover. This engine is the first diesel R6 from a Korean company.
Specifications
| Production years | since 2020 |
| Displacement, cc | 2996 |
| Fuel system | Common Rail |
| Power output, hp | 249 – 278 |
| Torque output, Nm | 589 |
| Cylinder block | aluminum R6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 83 |
| Piston stroke, mm | 92.3 |
| Compression ratio | 16.0 |
| Features | intercooler |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | yes |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 6.1 |
| Fuel type | diesel |
| Euro standards | EURO 6 |
| Fuel consumption, L/100 km (for Genesis GV80 2021) — city — highway — combined |
12.0 7.0 8.8 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 248 |
The engine was installed on:
- Genesis GV80 1 (JX1) since 2020.
Disadvantages of the Hyundai D6JA engine
- While various electrical glitches are discussed on specialized forums and everything is treated with firmware;
- It is still not clear how the aluminum cylinder block will show itself at high mileage;
- As always expected typical problems with the particulate filter or the EGR valve.
Frequently asked questions about the Hyundai D6JA
How much power does the Hyundai D6JA make?
The Hyundai D6JA develops 249 - 278 hp and 589 Nm of torque.
How much oil does the Hyundai D6JA take and which one?
Engine oil capacity: 6.1 liters. Recommended oil: 5W-30.
Does the Hyundai D6JA have a timing belt or chain?
The Hyundai D6JA uses a timing belt.
Is the Hyundai D6JA turbocharged?
Yes, the Hyundai D6JA is turbocharged.
Does the Hyundai D6JA need valve clearance adjustment?
No, the Hyundai D6JA has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Hyundai D6JA last?
The typical lifespan of the Hyundai D6JA is ~300 000 km with proper maintenance.
What is the fuel consumption of the Hyundai D6JA?
Genesis GV80 2021: city 12.0, highway 7.0, combined 8.8 L/100 km.
What cars was the Hyundai D6JA installed on?
Genesis GV80 1 (JX1) since 2020.
What are the common problems of the Hyundai D6JA?
While various electrical glitches are discussed on specialized forums and everything is treated with firmware. It is still not clear how the aluminum cylinder block will show itself at high mileage. All known problems.





