A jet engine can run on a lot of different fuels...................
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Oh Yeah. Worked C-141 aircraft years ago. The engines will burn just about anything flammable.
The problem was the fuel control. It’s basically a hydraulic analog computer that needs lubrication. One section of the manuals gave information on different fuels and how much lubricant to put in the fuel to keep the fuel control happy. Ran a close-typed page of combinations.
I don’t know why people seem to think ‘Jet Fuel’ is some exotic kind of fuel. They seem amazed when you tell them it’s mostly kerosene..................