I have been dealing with increasing oil level in my Cummins ISC-350 engine. I had oil on the TOAD, high oil level, and a full Slober container. The unit has twice been diagnosed and serviced by Cummins Bridgeway. The first solution was to install a new "Fuel Accum Mod #4025319RX" at mileage 62842. I returned the MH at mileage 63696 with the same issues. The second solution put in 6 new fuel injectors and removed the Slober container and tube. It appears the slober port has been plugged. Present mileage is 67770 and all conditions except for the full Slober container have returned. Oil analysis on the first two service appointments showed fuel in the oil. Looking for suggestions for the potential source of this problem. I am throwing out a lot of money on oil, filters, and service. So far I am not getting the problem solved.