New isobaric vapor-liquid equilibrium data have been obtained for the system 2,2’-oxybis[propane] (diisopropyl ether) + cyclohexane at 101.3 kPa and compared with previously reported data which appeared to be thermodynamically inconsistent. The system exhibits moderate positive deviations from ideal behavior. The activity coefficients and boiling point of the solution were correlated with its composition by the Redlich-Kister, Margules, and Wisniak-Tamir equations.