Fuel composition containing a medium substantially free of sulphur and process thereof

A fuel composition, comprising:

• (a) a medium substantially free of to free of sulphur;
• (b) a detergent/dispersant additive;
• and
• (c) a liquid fuel
• wherein the medium substantially free of to free of sulphur comprises an aliphatic hydrocarbon solvent, and the aliphatic hydrocarbon solvent is present from at least about 50 wt % to about 100 wt % of the total amount of the medium;
• wherein the aliphatic hydrocarbon solvent has a flashpoint of about 120° C. or higher;
• wherein the detergent/dispersant additive is the reaction product of a hydrocarbyl substituted acylating agent and an amine and wherein the hydrocarbyl substituent is derived from a polyisobutylene having a number average molecular weight of about 300 to about 5,000.