NOVELTY - Carbinol group clean fuel concoction additive contains 45-80 pts. wt. hydrotropy adjuvant, 3-25 pts. wt. modified improving agent, 0.005-0.02 pt. wt. antioxidant anti-glue agent, 3-20 pts. wt. synergism complexing agent and 10-30 pts. wt. combustion improver. The hydrotropy adjuvant contains methyl t-butyl ether and methyl methacrylate in the weight ratio of 45-80:0-15. The modified improving agent contains methyl cyclopentadienyl tricarbonyl manganese and ethylene glycol ethyl ether in the weight ratio of 3-25:0-12. Antioxidant anti-glue agent is 2,6-t-butyl formate.    USE - Carbinol group clean fuel concoction additive is used for producing methanol gasoline or diesel fuel (claimed).    ADVANTAGE - The increase of octane value of methanol gasoline which is tempered by carbinol group clean fuel concoction additive is stable. Direct ratio relation exists between additive amount and octane value. Combustion stability of fuel is strengthened, and efficiency of transferring chemical energy into kinetic energy is improved. The carbinol group clean fuel concoction additive has excellent storage stability, and does not produce oxidative deterioration when stored for long time. Discharge of emission from the fuel formed of carbinol group clean fuel concoction additive is reduced, thus environmentally-friendly.    DETAILED DESCRIPTION - Carbinol group clean fuel concoction additive contains 45-80 pts. wt. hydrotropy adjuvant, 3-25 pts. wt. modified improving agent, 0.005-0.02 pt. wt. antioxidant anti-glue agent, 3-20 pts. wt. synergism complexing agent and 10-30 pts. wt. combustion improver. The hydrotropy adjuvant contains methyl t-butyl ether and methyl methacrylate in the weight ratio of 45-80:0-15. The modified improving agent contains methyl cyclopentadienyl tricarbonyl manganese and ethylene glycol ethyl ether in the weight ratio of 3-25:0-12. Antioxidant anti-glue agent is 2,6-t-butyl formate. The synergism complexing agent contains octanol and isooctanol in the weight ratio of 3-20:5-10. The combustion improver contains isopropanol, t-butyl alcohol and isoamyl alcohol in the weight ratio of 1-30:5-25:1-20. INDEPENDENT CLAIMS are included for the following:    (1) preparation of carbinol group clean fuel concoction additive, which involves dispersing and mixing raw materials in a static mixer; and    (2) usage of carbinol group clean fuel concoction additive for producing methanol gasoline or diesel fuel.