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Whatever burned the Germans used at some point in the war in an attempt to keep their fighting vehicles running. Petrol, Coal, Wood(Yes wood!) and diesel all saw use in German tanks at one point or another. The most famous example of a German tank running a Diesel engine that actually saw action would be the Tiger 2 SLA modification that replaced the original petroleum engine with a slightly more powerful diesel one. We do know that some aircraft were propelled by ethanol and Potassium Permanganate.
Synthetic Fuel in WWII Germany | Coal | Petroleum
https://www.scribd.com/.../102022598/Synthetic-Fuel-in-WWII-Germany
This method was first effectively used by the Germans during World War II, so an examination of Germany’s situation at that time could be instructive. As a highly developed industrial state, Germany was dependent even in peacetime on external sources for an adequate supply of oil.
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Rocket Fuels - The Hellmuth Walter Rocket Motor Web Site
Rocket Fuels
The fuel mixture was again discovered through careful experiment. The methyl alcohol (which was referred to as M-Stoff), was mixed with hydrazine hydrate (B-Stoff) which promoted an auto-ignition reaction in the combustion chamber and smooth combustion during operation.
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List of stoffs
https://en.wikipedia.org/wiki/List_of_stoffs
The German word Stoff, like the English word stuff derives from Old French estoffe, however the meanings are somewhat different. Stoff has a fairly broad range of meanings, including "chemical substance" or "matter", "fuel" and "cloth", depending on the context. [1]
