[DonRotolo]

In the automotive world, we consider WD-40 a reasonably effective adhesive. It makes things slide for a little while, but then it gums up and gets sticky.

We use Mobil Velocite Spindle Oil #6 for a light lubricant, Mobil Vactra #2 Way Oil for a medium lubricant (both are used on the lathe too), WalMart spray white grease for a light grease, and Mobil synthetic grease (not sure of the number, but recommended by BaneBots to lube their planetary transmissions - it's dark blue) as a heavy grease.

Chains get light oil, shafts with bearings get light grease, transmissions get heavy grease, everything else is a best guess.