A fuel composition comprising (i) fuel and (ii) an additive composition, wherein said additive composition is present in an amount of at least 0.1 ppm to 1000 ppm based on a total weight of said fuel composition; wherein said fuel comprises gasoline, oxygenate, or mixtures thereof; and wherein the additive composition comprises: (a) a hydroxycarboxylic acid; and (b) a compound derived from a hydrocarbyl-substituted succinic acid or anhydride ("HSSA compound"), wherein at least a portion of said HSSA compound has the formula: wherein R 1 is a C 1 to C 50 linear or branched hydrocarbyl group; at least one of R 2 and R 3 is present and is a hydrocarbyl amine group or a C 1 to C 5 hydrocarbyl group, and the other of R 2 or R 3, if present, is a hydrogen or a C 1 to C 5 hydrocarbyl group; and/or wherein at least a portion of said HSSA compound has the formula: wherein R 1 is a C 1 to C 50 linear or branched hydrocarbyl group; R 4 is a C 1 to C 5 linear or branched hydrocarbyl group; and R 5 and R 6 are independently hydrogen or a C 1 to C 4 linear or branched hydrocarbyl group; and/or wherein at least a portion of said HSSA compound has the formula: wherein R 1 is a C 1 to C 50 linear or branched hydrocarbyl group; and R 7 is a C 1 to C 5 hydrocarbyl group; wherein the ratio of (a) to (b) in said additive composition ranges from 1:9 to 9:1, 1:8 to 8:1, 1:7 to 7:1, 1:6 to 6:1, 1:5 to 5:1, 1:4 to 4:1, or 1:3 to 3:1. wherein said fuel comprises gasoline, oxygenate, or mixtures thereof; and wherein the additive composition comprises: (a) a hydroxycarboxylic acid; and (b) a compound derived from a hydrocarbyl-substituted succinic acid or anhydride ("HSSA compound"), wherein at least a portion of said HSSA compound has the formula: wherein R 1 is a C 1 to C 50 linear or branched hydrocarbyl group; at least one of R 2 and R 3 is present and is a hydrocarbyl amine group or a C 1 to C 5 hydrocarbyl group, and the other of R 2 or R 3, if present, is a hydrogen or a C 1 to C 5 hydrocarbyl group; and/or wherein at least a portion of said HSSA compound has the formula: wherein R 1 is a C 1 to C 50 linear or branched hydrocarbyl group; R 4 is a C 1 to C 5 linear or branched hydrocarbyl group; and R 5 and R 6 are independently hydrogen or a C 1 to C 4 linear or branched hydrocarbyl group; and/or wherein at least a portion of said HSSA compound has the formula: wherein R 1 is a C 1 to C 50 linear or branched hydrocarbyl group; and R 7 is a C 1 to C 5 hydrocarbyl group; wherein the ratio of (a) to (b) in said additive composition ranges from 1:9 to 9:1, 1:8 to 8:1, 1:7 to 7:1, 1:6 to 6:1, 1:5 to 5:1, 1:4 to 4:1, or 1:3 to 3:1. (a) a hydroxycarboxylic acid; and (b) a compound derived from a hydrocarbyl-substituted succinic acid or anhydride ("HSSA compound"), wherein at least a portion of said HSSA compound has the formula: wherein R 1 is a C 1 to C 50 linear or branched hydrocarbyl group; at least one of R 2 and R 3 is present and is a hydrocarbyl amine group or a C 1 to C 5 hydrocarbyl group, and the other of R 2 or R 3, if present, is a hydrogen or a C 1 to C 5 hydrocarbyl group; and/or wherein at least a portion of said HSSA compound has the formula: wherein R 1 is a C 1 to C 50 linear or branched hydrocarbyl group; R 4 is a C 1 to C 5 linear or branched hydrocarbyl group; and R 5 and R 6 are independently hydrogen or a C 1 to C 4 linear or branched hydrocarbyl group; and/or wherein at least a portion of said HSSA compound has the formula: wherein R 1 is a C 1 to C 50 linear or branched hydrocarbyl group; and R 7 is a C 1 to C 5 hydrocarbyl group; wherein the ratio of (a) to (b) in said additive composition ranges from 1:9 to 9:1, 1:8 to 8:1, 1:7 to 7:1, 1:6 to 6:1, 1:5 to 5:1, 1:4 to 4:1, or 1:3 to 3:1. wherein R 1 is a C 1 to C 50 linear or branched hydrocarbyl group; at least one of R 2 and R 3 is present and is a hydrocarbyl amine group or a C 1 to C 5 hydrocarbyl group, and the other of R 2 or R 3, if present, is a hydrogen or a C 1 to C 5 hydrocarbyl group; and/or wherein at least a portion of said HSSA compound has the formula: wherein R 1 is a C 1 to C 50 linear or branched hydrocarbyl group; R 4 is a C 1 to C 5 linear or branched hydrocarbyl group; and R 5 and R 6 are independently hydrogen or a C 1 to C 4 linear or branched hydrocarbyl group; and/or wherein at least a portion of said HSSA compound has the formula: wherein R 1 is a C 1 to C 50 linear or branched hydrocarbyl group; and R 7 is a C 1 to C 5 hydrocarbyl group; wherein the ratio of (a) to (b) in said additive composition ranges from 1:9 to 9:1, 1:8 to 8:1, 1:7 to 7:1, 1:6 to 6:1, 1:5 to 5:1, 1:4 to 4:1, or 1:3 to 3:1.