Vapor-liquid equilibrium (VLE) data are reported for the binary mixtures formed by hexane and the branched ether 1,1-dimethylpropyl methyl ether (tent-amyl methyl ether or TAME). A Gibbs-van Ness type apparatus was used to obtain total vapor pressure measurements as a function of composition at 298.15, 308.15, 318.15, and 328.15 K. The system shows positive deviations from Raoult's law. VLE data are analyzed together with excess enthalpy (H-m(E)) and excess volume (VEmE) data previously obtained at 298.15 K for these mixtures. The UNIQUAC model, the lattice-fluid model, and the Flory theory are used to simultaneously correlate VLE and HE data and to correlate or predict V-m(E) data. The original UNIFAC group contribution model and the modified UNIFAC (Dortmund model) are used to predict VLE data.