Iranian gasoil

Gasoil sits within the diesel fuel family, of which there are two primary types:

White gasoil

White diesel is what is usually referred to as gasoil because of its use in automotive vehicles such as cars.

Red gasoil

Both red and white diesel are indistinguishable in their chemical form, however red diesel has had a red dye added to it so that it is visibly different to anyone inspecting it.