The 2.0-liter Mitsubishi 4D68 diesel engine was produced by the company from 1991 to 2002 and was installed on a number of popular passenger car models of the concern, such as Lancer, Colt and Galant. This power unit existed both in atmospheric and turbocharged versions.
The 4D6 family also includes engines: 4D65.
The engine was installed on:
- Mitsubishi Colt 4 (CA) in 1991 – 1995;
- Mitsubishi Colt 5 (CJ) in 1995 – 2002;
- Mitsubishi Lancer 4 in 1991 – 1995;
- Mitsubishi Lancer 5 in 1995 – 1999;
- Mitsubishi Galant 7 (E5) in 1992 – 1998;
- Mitsubishi Galant 8 (EA) in 1996 – 2000;
- Proton Wira 1 in 1995 – 2000.
Specifications
| Production years | 1991-2002 |
| Displacement, cc | 1998 |
| Fuel system | prechambers |
| Power output, hp | 68 (4D68 Non-Turbo) 90 (4D68T Turbo) |
| Torque output, Nm | 123 (4D68 Non-Turbo) 191 – 202 (4D68T Turbo) |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 82.7 |
| Piston stroke, mm | 93 |
| Compression ratio | 22.4 |
| Features | no |
| Hydraulic lifters | no |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no yes |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 5.1 |
| Fuel type | diesel |
| Euro standards | EURO 2 (4D68 Non-Turbo) EURO 3 (4D68T Turbo) |
| Fuel consumption, L/100 km (for Mitsubishi Galant 1998) — city — highway — combined |
9.3 5.7 7.0 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 170 |
Disadvantages of the Mitsubishi 4D68 engine
- This diesel engine is famous for its low reliability and pesters with frequent oil leaks;
- The turbine has a low resource, replacement may be required already at 100,000 km;
- The balance shaft belt often breaks at 50,000 km, which is dangerous for the engine;
- Also, the crankshaft pulley often cracks, and the EGR valve quickly becomes clogged with soot;
- On high mileage, many owners are faced with cracked head blocks.
