To obtain a new aromatic amide useful as a fuel additive for preventing and controlling engine deposits.

This compound is shown by formula I (A is hydroxy, nitro, amino, an N-alkylamino or the like; R1 and R2 are each H, hydroxy, a 1-6C lower alkyl or a 1-6C lower alkoxy; R3 is H or a 1-6C lower alkyl; R4 is H or a group of formula II (A1 is hydroxy, nitro, amino or the like; R8 and R9 are each H, hydroxy, a 1-6C lower alkyl or the like); R5 and R6 are each H, a 1-6C lower alkyl or the like; R7 is H, a 1-100C aralkyl or the like; (x) is 2-5; (y) is 0-2; (z) is 5-100) such as α-[2-(4'-benzyloxybenzamido)butyl]-ω-4- dodecylphenoxypoly(oxybutylene). The compound of containing I is obtained, for example, by reacting an acyl halide of formula III (R10 is nitro or the like; W is chloride or the like) with a poly(oxyalkylene)-substituted amine of formula IV.