The MGX engines are engineered to deliver maximum power and torque with outstanding economy and low emissions with an advanced fuel efficient Kubota 4 cylinder intercooled turbocharged common rail diesel engine (CRS) (3.8 litre on M100GX/M110GX and 6.1 litre on M126GX/M135GX).
The Common Rail System (CRS) electronically controls the fuel injection timing and amount in stages rather than all at once for optimal combustion. The results are great efficiency, better fuel economy and less engine noise. Its combination with the Exhaust Gas Recirculation (EGR) and Diesel Particulate Filter (DPF) Muffler reduces harmful emissions to make the Grand X Series Interim Tier IV-compliant. 
Whatever the load or terrain the advanced engine management system provides a constant engine RPM, preventing drops in PTO speeds enabling stable and efficient operation.