Use of a resistance reduction composition as a resistance reducer for a hydrocarbon-containing fluid having an average temperature of 20 ° C or less, in which the resistance reduction composition comprises: a continuous phase and a plurality of particles of resistance reduction polymer, wherein at least a portion of said polymer particles comprises copolymers containing the residues of at least one methacrylate monomer and the residues of at least one comonomer, wherein said comonomer comprises a polymerizable vinyl group which has no more than one pendant substituent for vinyl carbon.
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