The 1.8-liter Mitsubishi 4B10 gasoline engine was assembled by the company from 2007 to 2017 and was installed on such popular models of the Japanese concern as Lancer, ASX and a similar RVR. This motor was created jointly with Hyundai and Chrysler as part of the Global Engine Manufacturing Alliance.
In 2002, Hyundai, Mitsubishi and Chrysler created the Global Engine Manufacturing Alliance and, within this alliance, designed a line of 1.8, 2.0 or 2.4 liter gasoline units. The only one of the three concerns who launched a 1.8-liter engine into the series was Mitsubishi. By design, this is a typical engine for its time with distributed fuel injection, an aluminum block with cast-iron sleeves, a 16-valve head without hydraulic compensators, a timing chain drive and a proprietary MIVEC type variable valve timing system. Based on this engine, the next generation gasoline unit with the 4J10 index was created.
4B1 family: 4B10, 4B11, 4B11T, 4B12.
Specifications
| Production years | 2007-2017 |
| Displacement, cc | 1798 |
| Fuel system | distributed injection |
| Power output, hp | 140 – 143 |
| Torque output, Nm | 172 – 178 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 77.4 |
| Compression ratio | 10.5 |
| Features | no |
| Hydraulic lifters | no |
| Timing drive | chain |
| Phase regulator | MIVEC |
| Turbocharging | no |
| Recommended engine oil | 5W-30, 5W-40 |
| Engine oil capacity, liter | 5.0 |
| Fuel type | petrol |
| Euro standards | EURO 4/5 |
| Fuel consumption, L/100 km (for Mitsubishi Lancer 2008) — city — highway — combined |
10.4 6.1 7.7 |
| Engine lifespan, km | ~350 000 |
| Weight, kg | 122 |
The engine was installed on:
- Mitsubishi ASX 1 (GA) in 2010 – 2016;
- Mitsubishi Lancer 10 (CY) in 2007 – 2017.
Disadvantages of the Mitsubishi 4B10 engine
- This is a very reliable unit without any weak points, however, at high mileage, it can consume oil due to severe wear of valve seats or the occurrence of rings. And in this engine, an open-jacketed block and an ellipse of cylinders are not at all uncommon.
- On runs over 150 – 200 thousand km, the timing chain often stretches and starts to rattle. The replacement itself and spare parts for it will not be very expensive, but only if you do not encounter severe wear on the sprockets of the phase regulators, but they are quite expensive.
- The owners also complain about the noisy operation of the unit, lubricant leaks, weak wiring, frequent burnout of the exhaust pipe ring and simply cracking of the exhaust manifold. And do not forget about adjusting the valve clearance, since there are no hydraulic lifters here.
Frequently asked questions about the Mitsubishi 4B10
How much power does the Mitsubishi 4B10 make?
The Mitsubishi 4B10 develops 140 - 143 hp and 172 - 178 Nm of torque.
How much oil does the Mitsubishi 4B10 take and which one?
Engine oil capacity: 5.0 liters. Recommended oil: 5W-30, 5W-40.
Does the Mitsubishi 4B10 have a timing belt or chain?
The Mitsubishi 4B10 uses a timing chain.
Is the Mitsubishi 4B10 turbocharged?
No, the Mitsubishi 4B10 is naturally aspirated.
Does the Mitsubishi 4B10 need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Mitsubishi 4B10 last?
The typical lifespan of the Mitsubishi 4B10 is ~350 000 km with proper maintenance.
What is the fuel consumption of the Mitsubishi 4B10?
Mitsubishi Lancer 2008: city 10.4, highway 6.1, combined 7.7 L/100 km.
What cars was the Mitsubishi 4B10 installed on?
Mitsubishi ASX 1 (GA) in 2010 - 2016; Mitsubishi Lancer 10 (CY) in 2007 - 2017.
What are the common problems of the Mitsubishi 4B10?
This is a very reliable unit without any weak points, however, at high mileage, it can consume oil due to severe wear of valve seats or the occurrence of rings. And in this engine, an open-jacketed block and an ellipse of cylinders are not at all uncommon. On runs over 150 - 200 thousand km, the timing chain often stretches and starts to rattle. The replacement itself and spare parts for it will not be very expensive, but only if you do not encounter severe wear on the sprockets of the phase regulators, but they are quite expensive. All known problems.
