TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The fuel composition includes second fuel additive(s). The second fuel additive(s) are (hindered) phenolics, aryl amines, diphenyl amines, tall oil fatty acids, monocarboxylic acids, dicarboxylic acids, polycarboxylic acids, oxylated alkylphenolic resins, formaldehyde polymer with 4-(1,1-dimethyl ethyl)phenol, (methyl)oxirane, methyl cyclopentadienyl manganese tricarbonyl, cyclopentadienyl manganese tricarbonyl, azides, peroxides, alkyl nitrates, monoesters, diesters, (di)ethers (such as diethyl ether), polyethers, glycols, phenates, salicylates, sulfonates, nonylphenol ethoxylates, fuel-soluble alkali detergents (such alkaline earth metal-containing detergents and fuel soluble alkali detergents), 1-8C aliphatic hydrocarbons (such as butane and pentane), ketones, butylene oxides, propylene oxides, ethylene oxides, epoxides, nitrous oxide, nitromethane, xylene, dodecenyl succinic acid, or oleic acid with N,N dimethyl cyclohexylamine. The second fuel additive is preferably p-phenylene diamine or dicyclohexyl amine. The additive comprises a polyether amine dispersant. The composition can also include another fuel additive such as lubricity additives, combustion improvers, detergents, dispersants, cold flow improvers, dehazers, demulsifiers, cetane improvers, antioxidants, scavengers, or pollution suppressants. EXAMPLE - A Keep Clean test was performed by driving Chevrolet Impala(RTM: vehicle) for 5000 miles using fuel containing gasoline without ethanol and fuel containing E85 blend (i.e. containing ethanol (74 %) and H-6560(RTM: Mannich base dispersant from dibutyl amine (1 lb/thousand barrels))). The ethanol used in E85 blend was ethanol with DCI-11(RTM: corrosion inhibitor). The Intake Valve Deposits (IVD), and combustion chamber deposit (CCD) were measured that the result showed that the fuel containing gasoline without ethanol provided IVD of 429 mg and CCD of 1232 mg while the fuel containing E85 blend provided IVD of 191 mg and CCD of 265 mg.