Heya!
Hmmmm... I use mineral oil exclusively, any more, as a protectant, especially on my high carbon steel blades. I used to use "Rain-X" as a protectant; I've never seen any product work better. I know it's for windshields, but it leaves no tangible film, while preventing rust. It became an issue when I needed to cut food.
As far as lubricants go, I don't hold well to wet. I still prefer the old graphite powder, as it doesn't retain dust particles, and clog up the works. I've used most everything; for a lazy man like myself, I prefer the minimal takedown approach.
Later!
Paul