The popular Millenia model and its variants, the Xedos 9 and Eunos 800, were equipped with the 2.3-liter gasoline V6 Mazda KJ-ZEM engine, which was manufactured in Japan between 1993 and 2002. Because it had a compressor and worked on the Miller cycle, this engine was unique among its lineup.
The K-engine family consists of K8-DE, K8-ZE, KF-DE, KF-ZE, KL-DE, KL-G4, and KL-ZE.
The engine was mounted on:
- Mazda Eunos 800 TA in 1993 – 1998;
- Mazda Millenia TA in 1994 – 2002;
- Mazda Xedos 9 TA in 1993 – 2002.
Specifications
| Production years | 1993-2002 |
| Displacement, cc | 2255 |
| Fuel system | distributed injection |
| Power output, hp | 210 – 220 |
| Torque output, Nm | 280 – 290 |
| Cylinder block | aluminum V6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 80.3 |
| Piston stroke, mm | 74.2 |
| Compression ratio | 10.0 |
| Features | Miller Cycle |
| Hydraulic lifters | no |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | compressor |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.1 |
| Fuel type | petrol |
| Euro standards | EURO 3 |
| Fuel consumption, L/100 km (for Mazda Millenia 1995) — city — highway — combined |
11.8 7.1 8.7 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 205 |
Disadvantages of the Mazda KJ-ZEM engine
The primary issue is compressor failures;
Additionally, the aluminum block is terrified of overheating; monitor the cooling system;
The engine typically uses one liter of oil every 1000 kilometers on runs longer than 100,000 kilometers;
There are no hydraulic lifters, and valve clearances must be changed every 100,000 kilometers. The timing belt is made for 80,000 kilometers, and replacing it is costly. However, the valves do not bend when it breaks.