In the wake of the formal Japanese surrender (2 September 1945), Maumee's role in the postwar fleet came under consideration, and on 21 September, the office of the Chief of Naval Operations (OpNav) recommended her disposal. Before that eventuality would come to pass, however, there was still work to be done. Maumee rendezvoused with Task Unit (TU) 70.2.3 and resumed her China-bound voyage and anchored off the Yangtze River on 30 September. Three days later, Maumee ascended the Whangpoo River to Shanghai, where the oiler served as station fuel ship until she was reassigned to the Atlantic Fleet and returned to Pearl Harbor (16 November–8 December 1945).