Pure-component vapor pressures and vapor-liquid equilibrium data at 94 kPa have been determined for the binary systems methyl 1,1-dimethylethyl ether + benzene and methyl 1,1-dimethylethyl ether + toluene. The systems exhibit regular behavior and a slight positive deviation from ideality, and no azeotrope is present. The data were correlated by the Wisniak-Tamir equation, and the appropriate parameters are reported.