An additive for liquefied-gas fuels for corrosion protection, ageing protection, prevention of the precipitation of deposits on engine components and maintaining cleanliness of the exhaust gas from internal combustion engines run with the liquefied gas is characterised by a content of a) 30 to 60 % by volume of at least one nitrogen-containing solvent, b) 30 to 60 % by volume of at least one nitrogen-containing dispersant, c) 0.5 to 10 % by volume of at least one nitrogen-containing corrosion inhibitor and d) 0.5 to 10 % by volume of at least one oxidation inhibitor. IMAGE
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