Will do, I'll be driving Dad's Powerstroke next week to give it some highway miles so will have him keep the MMO topped on the cylinders for the parked 240D while I'm gone until next weekend. I'm going to get some Delvac 1650 to run in it if no noticeable improvement after a couple weeks of my normal drive, hopefully that will help zero-in on it being an oil ring problem. Heck, if I can manage the $$$ maybe running Mobil-1 for a time will loosen them up! Otherwise I've got three turbo OM617's, one NA OM617 and another OM616 to choose from for a rebuild to replace this one!
