Fuel compositions

A method of reducing the phase separation temperature of a fuel composition containing a gas oil base fuel and an alkyl levulinate, said method comprising increasing the level of aromatic constituents in the fuel composition.

A method of reducing the phase separation temperature of a fuel composition containing a gas oil base fuel and an alkyl levulinate, said method comprising the steps of incorporating in the fuel composition one or more additional components, each of which components contains one or more aromatic constituents.

The method of clam 9 wherein said alkyl levulinate is selected from the group consisting of ethyl levulinate, n-propyl levulinate, n-butyl levulinate, n-pentyl levulinate, 2-hexyl levulinate, 2-ethyl hexyl levulinate and mixtures thereof.

The method of clam 8 wherein said alkyl levulinate is selected from the group consisting of ethyl levulinate, n-propyl levulinate, n-butyl levulinate, n-pentyl levulinate, 2-hexyl levulinate, 2-ethyl hexyl levulinate and mixtures thereof.

A process for the preparation of a fuel composition comprising the step of blending a gas oil base fuel, an alkyl levulinate and at least one additional component, each of which component contains one or more aromatic constituents.