The Mitsubishi 6A12 2.0-liter V6 engine was assembled by a Japanese company from 1992 to 2010 and was first installed on a number of its mass models, and after 2000 only on Proton cars. This power unit existed in SOHC, DOHC, DOHC-MIVEC and twin-turbo modifications.
The 6A1 family also includes engines: 6A10, 6A11, 6A12TT, 6A13 and 6A13TT.
The engine was installed on:
- Mitsubishi Diamante F10 in 1992 – 1994;
- Mitsubishi FTO in 1994 – 2000;
- Mitsubishi Galant E50 in 1992 – 1998;
- Mitsubishi Galant EA in 1996 – 2000;
- Proton Waja Chancellor in 2005 – 2010;
- Proton Perdana in 1998 – 2010.
Specifications
| Production years | 1992-2010 |
| Displacement, cc | 1998 |
| Fuel system | injector |
| Power output, hp | 145 – 150 (MPI SOHC) 170 – 180 (MPI DOHC) 200 (MPI DOHC-MIVEC) |
| Torque output, Nm | 180 (MPI SOHC) 190 (MPI DOHC) 200 (MPI DOHC-MIVEC) |
| Cylinder block | cast iron V6 |
| Block head | aluminum 24v |
| Cylinder bore, mm | 78.4 |
| Piston stroke, mm | 69 |
| Compression ratio | 9.5 – 10.4 (MPI SOHC) 10.0 (MPI DOHC) 10.0 (MPI DOHC-MIVEC) |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no (MPI SOHC) no (MPI DOHC) MIVEC (MPI DOHC-MIVEC) |
| Turbocharging | no (except for 6A12TT, for which a separate article) |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 4.2 |
| Fuel type | petrol |
| Euro standards | EURO 2/3 |
| Fuel consumption, L/100 km (for Mitsubishi FTO 1998) — city — highway — combined |
10.7 6.1 8.3 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 170 |
Disadvantages of the Mitsubishi 6A12 engine
- A very dense layout of the engine compartment complicates the maintenance of the engine;
- The timing belt is designed for 90,000 km, but it can burst earlier and bend the valves;
- Quite often, the idle speed controller fails and the car simply starts to stall;
- Due to poor oil, hydraulic lifters wear out quickly and begin to knock;
- Even with a slight drop in oil pressure, the liners can turn here.