i once ran a toyota forklift on drag racing fuel. it was where i worked almost 10 years ago.
we kept the fuel in old turps drums and the boss had some he filled with methanol for a 1100 horsepower torana [i think maybe it was avgas not sure] i dont know how it ended up with the drums of unleaded, but the forklift sounded a lot different and went much better
the boss heard the way it was running and asked me what id done to it, when i told him id just put some fuel in it and showed him the drum he realised where he had put his racing fuel was very bloody funny to see the look on his face when he told me that was 100 dollars worth of fuel. this was before petrol went over 1 dollar a litre