Blackstone confirmed what I had hoped wasn't true; I have a leaking (probably) upper intake gasket on my Windstar. Noticed a slight coolant loss over the course of the OCI so I sent a sample off. Fortunatly it's slow and not killing the engine as long as I change it around the same milage (who knows what previous owners did though)
So it's a set of new intake gaskets for me and another sample a couple months down the road or so.
My first ever UOA and kudos to Blackstone for good service!

So it's a set of new intake gaskets for me and another sample a couple months down the road or so.
My first ever UOA and kudos to Blackstone for good service!