Sorry for the late reply. I don't get notifications. I couldn't find Nils in Canada, so I used MAXIMA MTL TRANSMISSION LUBE.
However, there seemed to be too much clutch drag when I switched to using tikover mode. I hardly used the clutch till then. So I ordered Nils from the USA to see if it helped with the drag. The drag was about the same with Nils. After warming up, drag was less. Since then, I don't notice the drag, it could be less than before. I now think it's normal for all bikes.
I've changed the clutch oil a number of times now, and not much at all on the drain plug.