Originally Posted by harofreak00
compression check FTW!
Compression test might show it if the leak is bad enough. Blown head gasket usually leaks the other way...coolant gets sucked into the cylinder on the intake stroke, with a little pressure going back into the coolant on the compression and power strokes. You get a little coolant in the oil, but the bulk of it flashes into steam and goes out the exhaust.
I'm curious what the "black" in the coolant looks like. Is it degraded rubber from the hoses, carbon, oil, or cooked ATF ?
In truth, the 60 degree V6 does have a history of blowing head gaskets, but I would not jump to that conclusion just yet.