What is bunker c fuel oil?

Bunker C fuel oil, often referred to as Bunker C, is a heavy, viscous fuel derived from the distillation of crude oil. It is primarily used in marine vessels and industrial applications due to its high energy content and lower cost compared to lighter fuels. Bunker C requires pre-heating for efficient combustion and is subject to regulations regarding sulfur content to minimize environmental impact. Its use is prevalent in large ships, such as tankers and cargo vessels, where efficiency and cost-effectiveness are critical.