Preparation and use method of fuel cleaning synergist

The invention provides a preparation and use method of a fuel cleaning synergist, a nitro-compound, toluene and synthetic ester oil mixture is used as a main component, polyether amine in a corresponding proportion is used as an auxiliary component, the proportions of different substance components are designed, and based on formula components of the fuel cleaning synergist and optimal mixing proportion data, the fuel cleaning synergist can be used for preparing the fuel cleaning synergist. Fitting by using a least square method to obtain a blending ratio recommendation model of the component formula of the fuel oil purification synergist and the fuel oil, and further calculating the optimal blending ratio of the component formula of other fuel oil purification synergists; and application and testing are carried out to verify the use effects of the fuel cleaning synergists with different formulas and mixing proportions. According to the invention, the economical efficiency, the emission performance, the dynam