Agreed, swabbing with a little alcohol, followed by a quick wipe with your preferred BP "bar griz", or "Moose slime" shouldn't be a problem.
As I hear the tale told there's "something" in natural petroleums that mixes with BP residue to tar up. But some denser petroleum products (like vaselene) don't have the problem because as the raw petroleum is progressively fractioned the offending ingredient is simply removed by the fractioning process at a point before this proiduct is skimmed.
Supposedly synthetic oils dont even have the offending component in the first place, which is why things like Mobil 1 are so popular.
Allan Quatermain: “Automatic rifles. Who in God's name has automatic rifles”?
Elderly Hunter: “That's dashed unsporting. Probably Belgium.”