Running on marine (or furnace) oil which is a fraction obtained from the crude oil distillation, this impressive DAIHATSU 6-cylinder 660kW marine diesel engine is taken through air-purge priming and start up to 900rpm and has engine speed settings adjusted before being shut down.

Marine fuel oil as a distillate or a residue is the heaviest and least volatile of fuels used in shipping propulsion engines like this or for engine-room auxiliary generator sets for navigation and lighting.