A clean and cheap liquid fuel and its production are disclosed. The fuel consists of (by weight) light hydrocarbon (C5 / C6) 50-65, methanol 0-15, alcohol 10-25, modified C12 20-25,, mineral chameleon 0-0.006, hydrogen peroxide 0-0.008, ferrocene 0.002-0.006, acetone 0.3-0.7, n-butyl alcohol 0.04-0.08, acetic acid matte 0-0.007, and isoamyl acetate 0-0.08. The fuel is prepared from byproducts of refineries, such as C5, C6 and C12 hydrocarbons, with high thermal value above 8000 kilocalorie / Kg and stable flame. Its advantages include simple production and use, no odd smell, easy and complete combustion, explosion-resistance, cheap, safety and stability, no environmental pollution and harmless to human beings.