#diesel_oil__diesel_fuel  a heavy mineral oil used as fuel in diesel engines
  supertype:  fuel__combustible__combustiblematerial  a substance that can be burned to provide heat or power; "more fuel is needed during the winter months"; "they developed alternative fuels for aircraft"
  subtype:  derv  (British) diesel oil used in cars and lorries with diesel engines (from d(iesel) e(ngine) r(oad) v(ehicle))

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