Abstract:
Use of oligo- or polyamines having a number-average molecular weight of 46 to 70 000 which are free from phenolic hydroxyl groups for increasing the oxidation stability of biofuel oils which are based on esters of fatty acids, or of mixtures of such biofuel oils with medium distillates of fossil origin and/or of plant and/or animal origin, which are essentially hydrocarbon mixtures and are free of esters of fatty acids.