I came across this thread while looking for an answer of how to remove the white milky looking oil from the engine. I considered kerosene and diesel. There wasn't any milky oil in the radiator, just under the oil filler cap , and under the valve cover. And this was right after installing a new water pump, and new valve cover gasket. I drained the milky oil , and ran some older, but somewhat clean oil through it, just to displace the watery white oil. What I noticed while looking at the first batch of milky oil that came out, was that there was a sludgey residue at the bottom of the drain pan, and I thought, man, if that stuff is all over the internal engine components, I'm screwed. .....So , I tried Marvel Mystery Oil, because of it's cleaning properties. My thought was that MMO could dissolve the sludge, it would be easier to get that sludge more liquified, and out of my engine. So I put it in the engine, as instructed, and ran the engine for 5 minutes, at idle. I then waited a few minutes before draining the oil pan, and what came out was like chocolate milk, but much more liquidy than the cheap walmart oil that I also used with that flush. I then filled the engine with another batch of walmart cheap oil, and ran the engine for 15 minutes. ...... I checked the dipstick, and the oil looked clear. Not milky. I drained the oil anyways. It was darker than clear, but not milky, and not chocolately. Seems that the MMO worked for dissolving the tapioca pudding gunk, and getting it removed from the engine. Then I installed a new oil filter, and poured the Walmart oil that I had just drained, back into the motor. Ran the car for 15 minutes again. The oil was clear, like before. No milky, or chocolate looking, oil. I've never used the MMO before, but it appears to me that it worked. And it's relatively cheap. .... I'll keep on checking it, and plan on changing the oil in about 500 hundred miles, or a week, whichever comes sooner. .
