TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The non-quaternized detergent contains an amide group, where the quaternary ammonium salt detergent is a quaternary ammonium amide salt detergent. The protic solvent comprises 1-10C alcohol. The non-quaternized detergent comprises the condensation product of a hydrocarbyl-substituted acylating agent and a compound having an oxygen or nitrogen atom capable of condensing with the acylating agent and further having at least one tertiary amino group. The hydrocarbyl-substituted acylating agent comprises polyisobutylene succinic anhydride, where the compound is N,N-diethylethylenediamine, N,N-dimethylethylenediamine, N,N-dibutylethylenediamine, N,N-dimethyl-1,3-diaminopropane, N,N-diethyl-1,3-diaminopropane (all preferred), 1-aminopiperidine, 1-(2-aminoethyl)piperidine, 1-(3-aminopropyl)-2-pipecoline, 1-methyl-(4-methylamino)piperidine, 4-(1-pyrrolidinyl)piperidine, 1-(2-aminoethyl)pyrrolidine, 2-(2-amino ethyl)-1-methylpyrrolidine, N,N-dibutyl-1,3-diaminopropane, N,N,N'-trimethylethylenediamine, N,N-dimethyl-N'-ethylethylenediamine, N,N-diethyl-N'-methylethylenediamine, N,N,N'-triethylethylenediamine, N,N,N'-trimethyl-1,3-propanediamine, N,N,2,2-tetramethyl-1,3-propanediamine, 2-amino-5-diethylaminopentane, N,N,N',N'-tetraethyldiethylenetriamine, 3,3'-diamino-N-methyldipropylamine,3,3'-iminobis(N,N-dimethylpropylamine), triethanolamine, N,N-dimethylaminopropanol, N,N-diethylaminopropanol, N,N-diethylaminobutanol, triisopropanolamine, 1-(2-hydroxyethyl)piperidine, 2-(2-(dimethylamine)ethoxy)-ethanol, N-ethyldiethanolamine, N-methyldiethanolamine, N-butyldiethanolamine, N,N-diethylaminoethanol, N,N-dimethyl aminoethanol, and/or 2-dimethylamino-2-methyl-1-propanol. The quaternizing agent comprises ethylene oxide, propylene oxide, butylene oxide, and/or styrene oxide. Preferred Process: In (I), a protic solvent is present during the reaction of (a) and (b), where the reaction of (a) and (b) is essentially free of any additional acid component other than any acid group present in the structure of the detergent. The process further comprises heating the mixture of (a) to a temperature of 50-130 degrees C, holding for the reaction to complete and obtaining the quaternized dispersant. EXAMPLE - Polyisobutylene succinic anhydride (500 g), which was prepared by reacting 1000 number average molecular weight high vinylidene polyisobutylene and maleic anhydride, was heated to 70 degrees C and charged to a jacketed reaction vessel. A heptane (76.9 g) was added to the reaction vessel and then dimethylaminopropylamine (52.3 g) was added and holding the reaction at 70?C. Once the addition was completed, the reaction vessel was held at 70 degrees C for 1 hour to give a non-quaternized succinamide detergent. The non-quaternized succinamide detergent (470 g) was charged to a flask. A 2-ethylhexanol (180.6 g) was added to the flask and the mixture was stirred and heated to 55 degrees C under a nitrogen blanket. A propylene oxide (40.2 g) was then added to the reaction vessel via syringe pump over 4 hours, holding the reaction temperature at 55 degrees C. The batch was held for 16 hours to give quaternized succinamide detergent.