Color: Diesel is typically a yellow-brown color, while petrol is clear or light yellow.
Density: Diesel is denser than petrol, so a container of diesel will feel heavier than a container of petrol of the same size.
Touch test: Diesel is oily and sticky, while petrol is more volatile and evaporates quickly.
Miscibility: Diesel and petrol do not mix well. If you shake a container of diesel and petrol together, the two fuels will separate into two layers, with the diesel on the bottom and the petrol on the top.
