Thanks. Also found a link to a service manual: http://manuals.zedt.eu/daewoo/Manual...0TRANSAXLE.pdf

This suggests:
Transaxle Fluid (dry fill) 5.77L (6.1 qts)
Transaxle Fluid (drain and refill) 2.1L (2.2 qts)

So a drain and fill actually only changes about a third of the fluid.