TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The content of additive is 50-10000 ppm. The weight ratio of component (B) to component (A) is 0.01-10:1, preferably 0.05-5:1. The additive further contains metal passivant like triazole and its derivatives, Schiff base and/or polybasic carboxylic acid. The weight ratio of component (A) to metal passivant is 1:0.01-1. The base diesel-oil further comprises petroleum diesel-oil, Fischer-Tropsch diesel oil, hydrogenated and catalytically cracked diesel oil and/or diesel-oil mixture containing oxygen. The volume ratio of biodiesel oil to other diesel oil is 1:2-99. The hindered phenol antioxidant is a hindered phenol antioxidant having at least one tertiary butyl on ortho-position of phenolic hydroxyl group, preferably 2,2'-methylene-bis(4-methyl-6-tert-butylphenol), 4,4'-methylene-bis(2-methyl-6-tert-butylphenol), 4,4'-methylene-bis(2,6-tert-butylphenol), 4,4'-methylene-bis(2-tert-butylphenol), 4,4'-thiobis(3-methyl-6-tert-butylphenol), 2,2'-thiobis(4-methyl-6-tert-butylphenol), 4,4'-thiobis(2-methyl-6-tert-butylphenol), 4,4'-thiobis(2,6-tert-butylphenol), bisphenol antioxidant cross-linked by methylene or sulfur and/or bis(3,5-tert-butyl-4-hydroxybenzyl)sulfide. The arylamine antioxidant is p-phenylenediamine derivative antioxidant, preferably 4-10C dialkyl-p-phenylenediamine, more preferably N,N'-diheptyl-p-phenylenediamine, N,N'-dioctyl-p-phenylenediamine and/or N,N'-bis(1-methyl heptyl)-p-phenylenediamine. The low carbonic ester containing hindered phenol is of formula (I), preferably chosen from beta -(4-hydroxy-3,5-di-tert-butylphenyl)methyl propionate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)ethyl propionate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)propyl propionate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)propyl isopropionate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)butyl propionate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)butyl isopropionate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)amyl propionate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)amyl isopropionate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)hexyl propionate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)hexyl isopropionate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)heptyl propionate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)heptyl isopropionate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)octyl propionate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)octyl isopropionate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)methyl butyrate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)ethyl butyrate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)propyl butyrate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)methyl isobutyrate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)ethyl isobutyrate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)propyl isobutyrate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)methyl valerate, beta -(4-hydroxy-3,5-di-tert-butylphenyl)ethyl valerate and beta -(4-hydroxy-3,5-di-tert-butylphenyl)propyl valerate.R1,R2= H or 1-24C hydrocarbyl, preferably 1-8C alkyl, cyclopentyl, or cyclohexyl;R3=1-20C alkyl, preferably 1-5C alkyl;andn=0-10, preferably 0-7.