Densities and viscosities of exo-tetrahydrodicyclopentadiene + n-undecane and exo-tetrahydrodicyclopentadiene + n-tetradecane were measured at different temperatures of (293.15, 298.15, 303.15, and 313.15) K and atmospheric pressure over the entire composition range. The excess molar volumes V(m)(E) and deviations in viscosity delta eta for the mixtures were calculated from the experimental data and fitted to the Redlich-Kister equation, and the regression coefficients and the standard deviations of the fits were given. The viscosity data were correlated with several semiempirical equations, and the double-parameter McAllister equation gives satisfactory results.