TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The aminoalcohol is 2-amino-3-hexanol, 2- amino-2-methyl-3-hexanol, 3-amino-4-octanol, 2-amino-2-methyl-3-heptanol, 2-amino-4-ethyl-3-octanol, 2-amino-3-heptanol and/or 2-amino-1-phenylbutanol (preferably 3-amino-4-octanol). Preferred Composition: The blend further comprises a biocide. Preferred Biocide: The biocide is triazine, iodopropynylbutylcarbamate, 1,2-benzisothiazolin-3-one, 4,4-dimethyloxazolidine, 7-ethyl bicyclooxazolidine, a combination of 4-(2-nitrobutyl)-morpholine with 4,4'-(2-ethyl-2-nitrotrimethylene) dimorpholine, 2-methyl-4-isothiazolin-3-one, a combination of 5-chloro-2-methyl-4-isothiazolin-3-one with 2-methyl-4-isothiazolin-3-one, 2-bromo-2-nitro-1,3-propanediol, octylisothiazolinone, dichloro-octylisothiazolinone, dibromo-octylisothiazolinone, a phenolic or corresponding sodium or their potassium salt, sodium pyrithione, zinc pyrithione, n-butyl benzisothiazolinone, 1-(3-chloroallyl)-3,5,7-triaza-1- azoniaadamantane chloride, chlorothalonil, carbendazim, diiodomethyltolylsulfone, 2,2-dibromo-3-nitrilopropionamide, glutaraldehyde, N,N'-methylene-bis-morpholine, ethylenedioxy methanol, phenoxyethanol, tetramethylol acetylenediurea, dithiocarbamates, 2,6-dimethyl-m-dioxan-4-ol acetate, dimethylol-dimethyl-hydantoin, tris(hydroxymethyl)nitromethane, bicyclic oxazolidine, (thiocyanomethylthio)-benzothiazole, methylene bis(thiocyanate), substituted dioxaborinane, tetrakis(hydroxymethyl) phosphonium sulfate, quaternary ammonium compound, cocodiamine and/or dazomet. The hydrocarbonaceous composition is a liquid fuel and the biocide is a combination of 4-(2-nitrobutyl)-morpholine with 4,4'-(2-ethyl-2-nitrotrimethylene) dimorpholine, a combination of 5-chloro-2-methyl-4-isothiazolin-3-one with 2-methyl-4-isothiazolin-3-one, a combination of (thiocyanomethylthio)-benzothiazole with methylene bis(thiocyanate (MBT) and/or substituted dioxaborinane. The hydrocarbonaceous composition is petroleum and the biocide is glutaraldehyde, 2-bromo-2-nitro-1,3-propanediol, an isothiazolinone compound, 2,2-dibromo-3-nitrilopropionamide, tetrakis (hydroxymethyl) phosphonium sulfate, an oxazolidine compound, a quaternary ammonium, cocodiamine and/or dazomet. Preferred Definitions:    R1=1-6C alkyl;    R=H, methyl or ethyl;    R3 and R4=H;    R5=absent.    ACTIVITY - Fungicide; Antibacterial. Test details described no results given.    MECHANISM OF ACTION - None given.    EXAMPLE - No suitable example is given.