Bus Driver wrote:With thermosiphon cooling, the coolant will not/cannot circulate except when the coolant level is sufficient to create a continuous "loop". Coolant must be visible when one looks into the radiator filler neck. It is a sort of balancing act to get enough coolant in the system to permit circulation without getting overflow from expansion when the engine is fully warmed.
I just fill the radiator up with the mix, I figure the old girl can spit out what she dosent need. I park on sand so im not worried about the excess dropping on the ground.