Originally posted by SICRX89
nope not loosing much at all, the only coolant being lost is through the over fill, and that isn't much
the overfill is not a contained system. it takes in coolant when the engine is at full running temp, as the coolant expands. when cold, the coolant contracts, and gets sucked from the overfill back into the radiator.
so if you're losing coolant in the overfill bottle, that means you're losing coolant within the whole system.
considering the compression test results, you probably have a blown headgasket... Honda uses siamese cylinders, so you're not going to get a dramatic loss of coolant when you have a blown headgasket between 2 cylinders, as the leak point isnt across a cooling channel or between an oil and cooling channel, causing coolant loss into the lubricating system. sounds simply like a lightly blown headgasket between 2 cylinders.