Looks like I'm not the only one loosing a bit of cooling on this motor. Talked to an independent mechanic who said once it fails pressure test he would replace both head gaskets and the intake manifold, since he won't be able to find specifically where it is. Dealer tells me they can tell where the leak is, and if its only the intake (or even one head), save a bunch of work. Any opinions on being able to tell if it is only the intake?
The leak is almost certainly externally, as there is a faint whiff of that lovely Dextrol after running the motor.