egine

Change the oil and filter post haste. Then idle it at high idle a short time. one minute or less. Then do it again. There are products that claim they will flush it, but for one these products are for sludge, and I for one am not a fan of quick-fix- in-a-bottle crap anyway. Use one of them if you so desire, just don't ask the parts store guy if you should, of course he will want to sell the s***. It wont get on the flywheel anyway, unless there is a seal bad to begin with, the even when you get the oil situation taken care of, regular motor oil will be on the flywheel...............Not good.

I can;t understand what you're trying to say about your flywheel? Are you saying that there is fluid on it or it is making a noise like it is hitting something? Drain all the oil out, add the proper amount of cheap engine oil (I would use 10w-40) with a quart or Marvel Mystery oil, run it until it is hot, then drain it and repeat the procedure a few times. I wouldn't put anything other than Marvel and engine oil in there. You'll always going to want to add Marvel now because your engine probably has some internal damage -- I don't know what Marvel does but it makes engines stop knocking all the time! After changing the oil a few times in a short period of time, I would run 10W-40 with marvel for about 500 miles, then change it and add 10W-30 with Marvel and stick with that. See how that works.

I agree with joef regarding MMO. Use it to clean your engine and lubricate the internal parts on every oil change. No more than 1 quart though.