Viscosities for the binary mixtures of tetrahydrofuran. tetrahydropyran, 1,3-dioxolane or 1,4-dioxane with 1-chloropentane or 1-chlorohexane have been determined at 283.15, 298.15 and 313.15 K, except for the Mixtures containing 1,4-dioxane whose measurements were carried out only at 298.15 and 313.15 K. Kinematic viscosities have been correlated by the McAllister equation. Viscosity deviations have been calculated from viscosity data for all the mixtures and results have been fitted with the Redlich-Kister equation. Experimental values of kinematic viscosity have been compared to values predicted by means of the Asfour method. (C) 2008 Elsevier B.V. All rights reserved.