#### CETANE NUMBER

The cetane number of a diesel fuel refers to the ease with which a diesel fuel ignites. Don't confuse cetane ratings with octane ratings. Octane ratings refer to the slowing or controlling of the burning of gasoline. Cetane ratings refer only to the ease or speed of the ignition of diesel fuel. High cetane numbers mean that the fuel will ignite with relative ease or that it ignites well at low temperatures.