The 3.0-liter inline-six twin-turbo diesel Jaguar AJ20D6 (AJ300D) has been built in England since 2020 for the updated F-Pace D300 with a mild hybrid system. It produces 300 hp and 650 Nm; Land Rover uses it as the DT306.
Ingenium-series family: AJ200P, AJ200D, AJ20P3, AJ20P6, AJ21D4, AJ20D6.
Specifications
| Production years | since 2020 |
| Displacement, cc | 2997 |
| Fuel system | Common Rail |
| Power output, hp | 300 |
| Torque output, Nm | 650 |
| Cylinder block | aluminum R6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 83 |
| Piston stroke, mm | 92.31 |
| Compression ratio | 15.5 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | Bi-Turbo by Garrett |
| Recommended engine oil | 0W-30 |
| Engine oil capacity, liter | 8.8 |
| Fuel type | diesel |
| Euro standards | EURO 6d |
| Fuel consumption, L/100 km (for Jaguar F-Pace 2021) — city — highway — combined |
9.8 6.5 7.4 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 197 |
The engine was installed on:
- Jaguar F-Pace 1 (X761) since 2020.
Disadvantages of the Jaguar AJ20D6 engine
- The engine is relatively new, so detailed failure statistics are not available yet;
- Early owners often complained about faults in the mild hybrid system, and there were leaks from the turbocharger oil feed pipe;
- The injection system with 2500 bar injectors does not tolerate poor fuel;
- Other complaints concern fouling of the intake, EGR valve and particulate filter.
Frequently asked questions about the Jaguar AJ20D6
How much power does the Jaguar AJ20D6 make?
The Jaguar AJ20D6 develops 300 hp and 650 Nm of torque.
How much oil does the Jaguar AJ20D6 take and which one?
Engine oil capacity: 8.8 liters. Recommended oil: 0W-30.
Does the Jaguar AJ20D6 have a timing belt or chain?
The Jaguar AJ20D6 uses a timing chain.
Is the Jaguar AJ20D6 turbocharged?
Yes, the Jaguar AJ20D6 is turbocharged (Bi-Turbo by Garrett).
Does the Jaguar AJ20D6 need valve clearance adjustment?
No, the Jaguar AJ20D6 has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Jaguar AJ20D6 last?
The typical lifespan of the Jaguar AJ20D6 is ~300 000 km with proper maintenance.
What is the fuel consumption of the Jaguar AJ20D6?
Jaguar F-Pace 2021: city 9.8, highway 6.5, combined 7.4 L/100 km.
What cars was the Jaguar AJ20D6 installed on?
Jaguar F-Pace 1 (X761) since 2020.
What are the common problems of the Jaguar AJ20D6?
The engine is relatively new, so detailed failure statistics are not available yet. Early owners often complained about faults in the mild hybrid system, and there were leaks from the turbocharger oil feed pipe. All known problems.
