From simulations of the dodecane/water system (without walls) we calculate the dodecane/water interfacial tension to be γ wat,dod = 27.3 ± 0.4 mN m -1 . Despite the large background 'overpressure' (Sec. 2.3.1), this is comparable to, but somewhat lower than the experimentally reported 51-52 mN m -1 range that is typical for this system. We attribute the mismatch between our simulated results and experimental data to a rather thick liquidliquid interfacial region (solid lines in Fig. ), which is a consequence of the soft potentials typically employed in DPD.