▎ 摘　　要

NOVELTY - Petrol detergent synergist composition comprises 30-70 pts. wt. solvent, 10-30 pts. wt. Dowtherm A (RTM: Eutectic mixture of two highly stable compounds biphenyl and diphenyl oxide), 5-15 pts. wt. polyetheramine HF-B100, 5-15 pts. wt. lubricant and 0.01-0.05 pt. wt. corrosion inhibitor. USE - The petrol detergent synergist composition is used for automobile engine. ADVANTAGE - The petrol detergent is clear and transparent, exhibits synergistic effect, greatly reduces residues, cleans the formed deposits, improves the quality of petrol oil and power performance of the automobile engine, and reduces fuel consumption and the emission of pollutants in the engine exhaust. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the petrol detergent synergist composition involving (i) adding solvent, Dowtherm A (RTM: Eutectic mixture of two highly stable compounds biphenyl and diphenyl oxide), polyetheramine HF-B100, lubricant and corrosion inhibitor to oil mixing tank based on to the mass ratio and uniformly mixing with gear pump through static mixer and (ii) filtering with 400-mesh filter, and leaving still for 24 hours to obtain the product.