Companies create No. 4 fuel oil by combining a distillate such as No. 2 fuel oil with the residual No. 5 fuel oil. Its most common use is in power plants, stationary engines and commercial heating boilers that lack preheaters. This oil may be referred to as "bunker oil," "diesel distillate," "residual fuel oil" or "heavy distillate."
Read More
Fuel oil (also known as heavy oil, marine fuel, bunker, furnace oil, or gasoil) is a fraction obtained from the distillation of petroleum (crude oil). It includes distillates (the lighter fractions) and residues (the heavier fractions).. The term fuel oil generally includes any liquid fuel that is burned in a furnace or boiler to generate heat, or used in an engine to generate power.
Read More