Method of formulating a fuel composition

Abstract

In a fuel composition containing a static dissipator additive, a lubricity enhancing additive is blended for the purpose of increasing the electrical conductivity of the composition, and/or for reducing the concentration of the static dissipator additive in the composition. The fuel composition is preferably an automotive diesel fuel composition and preferably contains a Fischer-Tropsch derived fuel component.

1 . A method for formulating a fuel composition, the method comprising (i) blending together a base fuel and a static dissipator additive, (ii) measuring the electrical conductivity of the resultant blend and (iii) incorporating a lubricity enhancing additive, in an amount effective to increase the electrical conductivity of the blend. 
     
     
         2 . A method of operating a fuel consuming system, which method comprising introducing into the system a fuel composition prepared by the method of  claim 1 . 
     
     
         3 . The method of  claim 1  wherein the fuel composition contains a Fischer-Tropsch derived fuel component. 
     
     
         4 . The method of  claim 3  wherein the fuel composition is an automotive diesel fuel composition. 
     
     
         5 . The method of  claim 2  where the fuel composition contains a Fischer-Tropsch derived fuel component. 
     
     
         6 . The method of  claim 5  wherein the fuel composition is an automotive diesel fuel composition.