oil in the coolant and vise versa.. :(

[Eastcoastmod]

first bit of good news.
Took her for a quick 10km to bring her up to temp.
Carefully took it to redline a couple of times....no smoke
Seems to still run strong.
Still got hot because I have no coolant flow.
Other than the obvious..ie pulling the bumper and trying to empty the rads of the gunk, is there anything else is should clean to get it flowing and is there an additive I can use to break down the oil?

[Eastcoastmod]

The good

First complete flush removed roughly 15 liters of mud...yes mud. thick chocolate milk.
filled with just water. let it come up to temp before taking it out for a drive.
Eventually things inside began to circulate.
I got back my heat.
Stayed just over 180 with just water...until I stopped and let it idle.

The bad..my oil level is not staying consistent.
May still be loosing it.
Will wait until the car has sat overnight to check it.
Thought I was ok because last oil change had virtually not coolant but now I'm not sure.

I fear freeze plug failure or cracked head still.
Will attempt a few more flushes tomorrow.
Today was over 30degrees...too hot to do much outside.