STB
Guru
But, coolant is 100% miscible -- it mixes with water and stays that way, at least in liquid form. So, in a hypothetical, where water and the coolant mixed in the heat exchanger, they would stay mixed in the cooling system and in the coolant as it leaked via the head gasket into the oil.
So, unless we believe the coolant has remarkably little glycol in it -- we can rule out a head gasket.
If it were me, I'd test that theory with a $5 hydrometer or a $15 refractometer. But, anyone seen a boat with only water in the cooling system (except during installation/service for testing)?
So, unless we believe the coolant has remarkably little glycol in it -- we can rule out a head gasket.
If it were me, I'd test that theory with a $5 hydrometer or a $15 refractometer. But, anyone seen a boat with only water in the cooling system (except during installation/service for testing)?