In this section, we present results of the proposed unified approach on each oil sample described in Experimental data section. For comparison purpose only, calibration is also performed with a Least-Squares formulation (deterministic) solved by a Dual Annealing 30 method, which is a global optimization algorithm available at SciPy 31 (version 1.3.2). All thermodynamics models, equilibria calculations and CSP viscosity estimations are implemented in a proprietary software called PVTlib 32 . For Sensitivity Analysis, the Elementary Effects method from SALib 33 (version 1.3.11) is employed. Probabilistic programming and Monte Carlo simulations (CATMIP) are implemented with PyMC3 34 (version 3.8).