The excess molar volumes V-m(E) have been measured as a function of mole fraction at T = (298.15 and 308.15) K and atmospheric pressure for,each of 12 binary mixtures: (hexane, or cyclohexane, or benzene, or heptane, or 1-heptene, or 1-heptyne, or octane, or 2,2,4-trimethylpentane, or decane, or dodecane, or tetradecane, or hexadecane + ethyl 1,1-dimethylpropyl ether). The results were compared to excess molar enthalpies H-m(E) for related mixtures and the specific interactions noted. The V-m(E) of all mixtures except for 1-heptyne and benzene are positive over the whole composition range. The experimental results have been correlated with Redlich-Kister polynomial and compared with the results predicted from Prigogine-Flory-Patterson theory. The interchange parameter, X-12, which minimized V-m(E) experimental data was adjusted and then used to predict enthalpy of mixing. The excess molar functions V-m(E) and H-m(E) of mixtures with hydrocarbons for four ethers: methyl 1,1-dimethylethyl ether, ethyl 1,1-dimethylethyl ether, methyl 1,1-dimethylpropyl ether and ethyl 1,1-dimethylpropyl ether were discussed.