I had a gallon stored in my fishing attic and figured I better do something with it before the container broke down and the stuff leaked through the ceiling. I made up a large bucket of bunker chum with the grinder and mixed in the gallon of oil, then froze it solid in a chest freezer. Last fall dropped it in a chum-bag and tossed it over the side while anchored near nomans.

It worked rather well.
I don't think it goes bad...I think it is like a fine wine, as it ages it becomes more "refined", one fishing buddy described it like this when he got some on his hands...
Bold, ripe, smooth and creamy. A real mouthful of bunker oil. Its tiers of ripe pear, fig, honey flavors are framed by smoky, toasty oak. An altogether complex and beautifully crafted oil with a chewey rich butterscotch aftertaste that still has all those delicious flavors chiming in .