JBH is expected to be formed as a water-in-oil micro emulsion (w/o) or reversed Micelle. For MBF or JBH used in diesel engines, the primary concerns are the miscibility and the kinematic viscosity. In this study, a pseudo ternary phase diagram was used to determine the transparent homogeneity phase of various surfactants and compositions. The pseudo three components are the CJO, D and mixture of bio ethanol and surfactant at various ratios (E/S ratio).The ethylene oxide (EO) is a polar head of the surfactant that increases the solubilization of w/o. Increasing the EO group of the surfactant produces an increase hydrophilic– lipophilic balance (HLB).