A fuel is a device that filters the impurities in fuel. When excessive amounts of dust accumulate in the filter, the amounts of clean fuel sent to the engine declines, possibly causing serious damage to parts of the fuel system, such as the fuel injection pump, which is the core of a diesel engine.

A filer is installed in a location that is difficult to see, and the symptoms are difficult to discover. We recommend that you periodically bring your car to a Mitsubishi authorized dealer for an inspection.