Does anybody have experience in running Mercedes CDI engines (specifically E320 straight six CDI) on biodiesel? I am considering using initially a small proportion (5%) of biodiesel and gradually increasing as the crud accumulated from mineral diesel is disolved, and prehaps replacing the fuel filter after the first couple of tanks.
Presumably this fuel will not have the damaging effect on the fuel pump that even a small amount of gasoline is reputed to have.