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No, the oil within the IP drains right back into the crankcase. Originally it was drained via a separate connection sort of a short cut and there is a pipe plug in the bottom of the IP at that point, but it still drains right back into the crankcase. I think that the engine hours could be an...

Have the oil analyzed often David, I know I will since I'm keeping the FDC on line in the 8x8 -2 engine. In the opinion of my chemist friend, biodiesel will not cause this problem, since the molecular chains are much shorter. The FDC leak may be caused by tiny (rust) particles in the fuel. I...

You may have put your finger on it, spoke with my chemist friend and she suggested that it's polymerization, the heat and pressure (=oil pressure) will create "long molecular chains" which increases the viscosity. Kind of the opposite of making biodiesel, where the chains are broken to reduce...