Tim I'd be very hesitant to use any oily substances on contacting surfaces. Even Caig pro-gold contains an oil which is supposed to prevent contact oxidation, but what sonic signature might this impart?
Under the hood of a car you'll find electrical contacts are wiped with silicon such as SilGlyde, and in that environment it makes sense to do that, but not with audio connections IMO.
Any oil or lubricant will attract & hold dust into the connection, causing importation of dirt into your connectors & even somewhat into the equipment itself. Solvents or lubricants might even cause material degradation, which is why Accuphase advises against using any cleaning solvents within their products & instead provides equipment with dust caps on all connectors. I still clean my cables & even the exterior surfaces of equipment contacts with an oil free solvent such as Kontact or Ultraconnect, but I never use anything containing oils or lubricants.
Under the hood of a car you'll find electrical contacts are wiped with silicon such as SilGlyde, and in that environment it makes sense to do that, but not with audio connections IMO.
Any oil or lubricant will attract & hold dust into the connection, causing importation of dirt into your connectors & even somewhat into the equipment itself. Solvents or lubricants might even cause material degradation, which is why Accuphase advises against using any cleaning solvents within their products & instead provides equipment with dust caps on all connectors. I still clean my cables & even the exterior surfaces of equipment contacts with an oil free solvent such as Kontact or Ultraconnect, but I never use anything containing oils or lubricants.