In previous work, we developed the crossover SAFT-VR equation of state (SAFT-VRX) for pure fluids by following the crossover approach proposed by Kiselev. The SAFT-VRX equation was shown to be very accurate in the prediction of PVT and phase behaviour for both non-associating and associating fluids. In particular, simple expressions for the potential model parameters for the n-alkane homologous series were developed, allowing the prediction of the thermodynamic properties without fitting to experimental data. In this work, we have applied the SAFT-VRX equation to binary mixtures of short-chain n-alkanes, using the prescriptions for the model parameters developed previously to determine the pure fluid parameters. The SAFT-VRX equation is found to accurately predict the gas-liquid critical locus and vapor-liquid equilibrium data for the systems studied without fitting to binary experimental mixture data. (c) 2004 Elsevier B.V. All rights reserved.