I would not use grease. Swarf will stick to it and make a splendid grinding paste.

Not much oil is needed on change gears — the load on them is minimal and they are cast iron so "self lubricating" to a certain extent.

Any old oil will do ok on the back gear. Whatever you have in your oil can. That said, I use spray can motorbike chain lube because it sticks to the gears but is not sticky (once dried) and makes minimum mess.

Be sure to oil the pulley where it spins on the mandrel when in back gear. Not sure on your model if/where the oil hole or fitting is. On some it is in the side of the pulley at the large end.

my 2 pence worth,

I use a dropper bottle with chain saw oil, quite sticky/stringy and clings quite well…………

in fact I use it all over the place, milling machine table and lift screw threads…….

cheers Clogs

I use chain bar oil for everything except the back gears – not because it is no good i just found something better – tac 2 spray lube or motorcycle chian lube .

both are designed to stick to what ever you spray it on and not fling off everywhere and you only need the tiniest amount – just a little squirt is enough .

Ian

Try bunnings or supercheap auto if you have them in NZ.

I think Bunnings and supercheap sell it as briggs and stratton oil or small engine oil , i used it for my air compressor as that was what pilot specified .

Ian.