We've got a Yanmar 4JH3E. We just noticed that the external coolant tank is EMPTY so we're assuming we have to bring it up to the fill level. Since the boat is new to us, is it recommended to do a full replacement of the coolant before adding new coolant? Or can we just buy any marine coolant (what kind do we get?) and fill 'er up to the full line? If we need to do a replacement, is there usually a coolant drain screw?
s/v "Pelican" Passport 40 #076- Finished Cruising - for the moment -
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