Seems like a bizarre post, but as it wasn't directly build related, or calibration related I thought i'd pop it in here. Having read many posts on here and in the build guide about applying grease the general mention seems to be for Lithium grease. my minor issue is I don't have any.. but I do have: poly urea grease - Parks; designed for bicycle bearings etc. Castrol multi purpose grease - designed for machine bearings; I use it on the lathe any reason either of these would not be as good? what I don't want to do is gunk up the machine; the machine is kept in a workshop is also dusty. but i'm going to try and cover it when not in use to keep the dust out of it.