Biodiesel is an alternative fuel that is used as a substitute for depleting fossil fuels. Biodiesel has different characteristics than fossil fuels, so changes to the engine are needed to improve engine performance. One way to improve engine performance is to vary the fuel filter mesh with sizes of 2, 10, and 30 microns. This study uses B40 and B50 fuel with engine rpm of 2500 kg/m2, 5000 kg/m2…