I tried to oil the rusty hinges on the cell door in the Bridge Barracks (the Brigand's "Special" room for ver 1.1).
It looks like Brattle's Fish Oil (I received after giving him back his Fishing Pole) will not work. There's no answer that it fails -- in fact, there's no message at all that the game recognizes what you are trying to do or that you are actually doing anything to the puzzle.
However, Udo's Oil works on the rusty hinges. Perhaps the fish oil is too weak? At least for the cell door hinges, because it works fine for the Barn Saw...
Also, for ver 1.1, it looks like Brattle's "thank-you" bottle is no longer set for a couple of uses -- now it's one use, and then it's gone!
*UPDATE - Just got in, but there are some serious "walk-through/walk-behind" animation issues with the crates and open cell door...