For those who use biodiesel, what have you done about replacing the short length of hose that comes out of the fuel tank? It has a fitting on one end that screws into the fuel strainer, and the replacement part from Mercedes is not biodiesel compatible. I believe that my hose is getting eaten from the inside out as evidenced by constant clogging of my prefilter with black specks that I do not think are fungus.

Does anyone know what thread size and pitch the fuel tank strainer has on the bottom where the fuel supply hose screws in? I may need to reduce and convert this down to 1/8" NPT so I can put a hose barb on it.

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1987 Mercedes 300D ~200K (Greasecar & Biodiesel)
1993 Ford F-250 7.3 IDI diesel 165K (Biodiesel)
1996 Thomas/International Bus with DT466 engine