Vanishing coolant mystery
As I mentioned in the other post, my US 996 is back on the road. But. But, there was an interesting mystery: the coolant was way down. As in, down by 3 quarts. The interesting part is: there was none on the ground, there was none in the engine bay (I assume the water pump has the usual weep hole which would cause pretty visible residue and/or spray. There was no coolant in the oil and, as far as I could tell, no oil in the coolant. What's my next diagnostic step? I am at a bit (a lot) of a loss. Thank you everyone!
