The present invention is a dry granular laundry detergent comprising builder, alkaline agent, filler, and surfactant, and a synergistic blend of polymeric soil release agents consisting essentially of from about 0.1 wt. % to about 0.5 wt. % nonionic soil release agent and from about 0.1 wt. % to about 1.0 wt. % anionic soil release polymer, wherein the weight ratio of nonionic agent to anionic agent is from about 1:1.5 to about 1:2.0. Using the mixture of nonionic and anionic soil release agents at the critical weight ratio of 1:1.5 to about 1:2.0 gives a synergistic boost in performance of the detergent, allowing about a 20% by weight lower dosing of dry detergent in the wash machine to achieve the same performance as a control composition not having soil release agent.