A diesel fuel classification is proposed that is compatible with fuel availability and that would enable consumers to better choose the optimum fuel for any use. It includes four, well-defined grades of fuel:
- A volatile, very high quality fuel with excellent combustion characteristics especially suited for use at low temperatures.
- A high quality fuel for general use in vehicles.
- A good quality fuel for general use in vehicles.
- A fuel for nonvehicle use.
Industry-wide adoption of this classification is recommended, and a proper first step would be revision of the ASTM D 975 classification of diesel fuel.