Patent ID: 8466329

Claim:
A method for preparing a diesel composition, consisting of: fractionating a Fischer-Tropsch derived diesel to remove heavy waxy paraffinic hydrocarbons, such that a light Fischer-Tropsch derived diesel component having a >C19 wax content of less than 3.5 mass % is obtained; and adding at least one component selected from the group consisting of a Fischer-Tropsch recycle stream from a hydroprocessing unit and a Fischer-Tropsch recycle stream from a hydrocracking unit to the light Fischer-Tropsch derived diesel component, wherein the Fischer-Tropsch recycle stream comprises in excess of 95 mass % of C24 and higher carbon number hydrocarbons, whereby a diesel composition is obtained, wherein the diesel composition exhibits a greater response to a cold filter plugging point improving additive than does the Fischer-Tropsch derived diesel component.