TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The weight ratio of component (II) to component (I) is 0.01-100:1, preferably 0.05-10:1. The aromatic amine antioxidant is substituted naphthylamine, substituted dianiline, substituted p-phenylenediamine, or substituted quinoline. The substituted naphthylamine is phenyl-alpha-naphthylamine, phenyl-beta-naphthylamine, and/or N-p-methoxyphenyl-alpha-naphthylamine. The substituted quinoline is 6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline, 6-phenyl-2,2,4-trimethyl-1,2-dihydroquinoline, 6-dodecyl-2,2,4-trimethyl-1,2-dihydroquinoline, and/or 2,2,4-trimethyl-1,2-dihydroquinoline polymer. The substituted p-phenylenediamine is N,N'-diheptyl p-phenylenediamine, N,N'-di-sec-butyl p-phenylenediamine, N,N'-dioctyl p-phenylenediamine, or N,N'-di-(1-methyl heptyl)-p-phenylenediamine. The phenol antioxidant is 2,2'-methylene-bis-(4-methyl-6-tertiary butyl phenol), 4,4'-methylene-bis-(2-methyl-6-tertiary butyl phenol), 4,4'-methylene-bis-(2,6-ditertiary butyl phenol), 4,4'-methylene-bis-(2-tertiary butyl phenol), 4,4'-thiobis-(3-methyl-6-tertiary butyl phenol), 2,2'-thiobis-(4-methyl-6-tertiary butyl phenol), 4,4'-thiobis-(2-methyl-6-tertiary butyl phenol), 4,4'-thiobis-(2,6-tertiary butyl phenol), or bis-(3,5-ditertiary butyl-4-hydroxybenzyl) thioether. The polyether amine is of formula (1). The polyether amine is obtained by reacting polyether halide or polyether with ammonia and/or amine. The amine is organic amine of formula HNR1R2, preferably methylamine, ethylamine, n-propylamine, n-amylamine, n-hexylamine, n-heptylamine, n-octylamine, n-nonyl amine, n-decyl amine, n-undecylamine, n-dodecylamine, n-tetradecylamine, n-cetylamine, n-octadecylamine, n-eicosylamine, n-dodecylamine, iso-propylamine, iso-butylamine, tertiary butylamine, iso-amylamine, octamylamine, iso-hexylamine, iso-heptylamine, iso-octylamine, iso-nonylamine, iso-decylamine, iso-dodecylamine, iso- tetradecylamine, iso-cetylamine, iso-octadecylamine, iso-eicosylamine, cycloamylamine, cyclohexylamine, oleyl amine, palmitoleylamine and tertiary carbon primary amine, and secondary amines of methyl, ethyl, n-propyl, n-butyl, n-amyl, n-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl, n-undecyl, n-dodecyl, n-tetradecyl, n-cetyl, n-octadecyl, n-eicosyl, n-dodecyl, isopropyl, isobutyl, tertiary butyl, iso-amyl, octamyl, iso-hexyl, iso-heptyl, iso-octyl, iso-nonyl, iso-decyl, iso-dodecyl, iso- tetradecyl, iso-cetyl, iso-octadecyl or iso-eicosyl, ethanolamine, di-ethanolamine, N-alkyl ethanolamine, N-alkenyl ethanolamine, N-alkyl isopropanolamine, N-alkenyl isopropanolamine, isopropanolamine, di-isopropanolamine, trihydroxymethyl aminomethane, 3-amino-1,2-propanediol, 2-amino-1,3-propanediol, 3-aminopropanol, 4-amino-1-butanol, 5-amino-1-pentanol, or 3-amino-1-hexanol and 4-amino phenyl. The amine may be of formula H2NR3NHR4; polyether diamine of formula NH2R5CHCH2(OCH2HHCR5)x1NHR4; polyene polyamine of formula H2N((CH2)x2NH)y1R6 and/or condensate of the polyene polyamine and ethylene oxide and/or propylene oxide; imidazoline polyamine of formula (4); or piperazine polyamine of formula (5). The polyamine in piperidine polyamine comprises tert. amine of formulae R9R10N(CH2)x4NH2 or N((CH2)x5NH2)3. The additive composition also comprises metal inactivating agent capable of reacting surface of metal and/or metal chelating agent capable of reacting or combining with metal or metal ion, preferably benzotriazole, ammonium salt formed by benzotriazole and fatty amine, product obtaining by benzotriazole, formaldehyde and fatty amine through Mannich reaction, or Schiff base and organic polybasic carboxylic acid.R=6-40C hydrocarbonyl;A=H or 1-18C;n=2-40;R1, R2=H, 1-30C hydrocarbonyl or carbonyl, hydroxy, carboxy, ester group, acyl, alkoxy, NO, CN, halo, amido group or amino group;R3=alkylidene, alkenyl, cycloalkyl, aryl or 1-30C polyether;x1=1-5;R4=H or 1-30C hydrocarbonyl;R5=H or CH3;x2=2-4;y1=1-18;R6=H or 1-30C hydrocarbonyl;y2=0-5;R7=1-24 C hydrocarbonyl;R8=H or1-24C hydrocarbonyl;x3=0-5;R9, R10=1-24C hydrocarbonyl;anadx4, x5=0-10.