We've had extensive discussions on Twilight War fuel stocks before, and I recall that a major problem would be that even though there would be stockpiles of various grades of gasoline and kerosene, those fuels degrade over time until they become either less effective or unusable depending on the engines they're being put through. When I'm home from work I'll search through the old threads for the specifics.
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 "It is better to be feared than loved" - Nicolo Machiavelli
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