I use one of these two products that are recommended for metal to metal applications:
Both are tenacious high solids "paste". There is less oil to evaporate, separate, run off, or collect dust. And, its my opinion that the solids boundary lubrication gets burnished into the metal to keep some lubrication after the oil component dissipates. They both state that they are brake safe, but we know how that goes.
I use the second product in paper thin layers on all kinds of applications (vehicle, ag., grounds, etc.) to prevent rust. Hubs, rotor hats, gate hinges.....it seems to be extremely tenacious against water wash off.