Fuel Dye Colorant

Crude oil derivatives such as petrol, kerosene and etc. are apparently all clear and colorless and similar to water, so they are not easily recognizable. To make them easier to recognize, a small amount of fuel dye colorant could be added to each of these products. For example, the gasoline could be in red, yellow can be added to the kerosene. Currently, our refineries have chosen the red color to make distinguished conventional gasoline.