I'm right with Matt on this one. Before we misdiagnose these things, think about where the fluid you are trying to track down can be located and where there are gaskets.

Cooling system that high up is one of two things. Either those o-rings leaked under the gasket were we can't see or the TB gasket let go internal to the intake. This means your SC will be wet inside as well. If it's not, then look over the o-rings super well under the gasket.