The measurements of excess molar volume V(E) at 298.15 K for binary mixtures formed by 1-propanol with 1-alkene (C(6), C(7)) and excess molar volume V(E) at (288.15, 298.15, and 308.15) K with 1-decene are reported. For the 1-decene system, the excess molar isobaric thermal expansion A(P)(E) at 298.15 K is estimated. These data together with V(E) and A(P)(E) at 298.15 K for 1-propanol with 1-octene published previously (Treszczanowicz et al. I Solution Chem. 2002, 31, 455-466 and 2004, 33, 275-285) are discussed and interpreted in terms of the Treszczanowicz and Benson (TB) model adapted for mixtures of self-associated component and active solvent. The model contains the Flory equation of state (EOS) combined with the association model proposed by Treszczanowicz and Kehiaian. The Flory EOS interaction interchange parameter is described in terms of the Kehiaian group contribution method taking into account the OH center dot center dot center dot pi interactions and nonspecific interactions. The model predicts qualitatively well the shape of the V(E) and the partial molar excess volume as well as A(P)(E).