the rate is about 0.5L every 2 weeks. i've been reduced to using water because it's a waste of coolant.

is it easy to replace the coolant hose going to the idle servo? this is a roughly 0.5" diameter hose. is there a special hose for this? there's a slow leak right at my idle servo and i suspect this is where i'm losing coolant.

another thing.. when the engine is running with the radiator cap off, there's very fine bubbling at the radiator cap. yeah, i know, i thought "OMG blowby!!" or something like that.. but there's no water in the oil, and there's no oil in the water. and there's no overheating.

any ideas?