The computed average density for dimethyl ether at 303 K at a pressure of 50.0 bar is 0.6603 g cm -3 , which is within about 0.3% of the experimental density of 0.66234 g cm -3 at 303.138 K. The computed viscosity of (0.1400 ± 0.0040) mPa s is about 8% larger than the experimental value of 0.12762 mPa s reported by Meng et al. The self-diffusion coefficient of (12.285 ± 0.021) × 10 -9 m 2 s -1 is about 11% larger than the experimental selfdiffusion coefficient of 10.9 × 10 -9 m 2 s -1 at 303 K and 50.0 bar. The latter value, however, was obtained by extrapolation from the temperature and pressure-dependent data set of the Lüdemann-group determined via pulsed gradient spin echo 1 H NMR. The computed average density for methanol at 298 K of 0.7882 g cm -3 is close to both the data reported for the OPLS/2016 model of 0.785 g cm -3 and the experimental data of 0.786 g cm -3 . The computed average viscosity of (0.435 ± 0.012) mPa s is also in reasonable agreement with the value of 0.46 mPa s reported for the OPLS/2016 model by Gonzalez-Salgado and Vega. Gonzalez-Salgado and Vega, however, only provide an uncorrected value for the selfdiffusion coefficient of 2.72 × 10 -9 m 2 s -1 for methanol at 298 K. By using their reported system size of 864 molecules, Table . Summary of the systems studied. Values given represent weighted averages taking into account the computed uncertainties. Here T is the simulation temperature, D0 the true self-diffusion coefficient and η the viscosity. The Rhyd denote the computed hydrodynamic radii according to the Stokes-Einstein relation. as well as their density and viscosity data, we compute a corrected value of 3.07 × 10 -9 m 2 s -1 , which is close to the value of (3.0434 ± 0.0089) × 10 -9 m 2 s -1 obtained here, also given in Table . The slight deviations from the data according Gonzalez-Salgado and Vega might be related to the use of the LJ-PME summation used in this work. Note also that the deviations from the experimental self-diffusion coefficient of 2.44 × 10 -9 m 2 s -1 and viscosity of 0.54 mPa s for the OPLS/2016 model at 298 K are quite substantial. The computed average density for triglyme at 303 K of 0.9760 g cm -3 almost perfectly matches the experimental value of 0.97586 g cm -3 obtained at 303.15 K. Note that also the computed average viscosity of (1.750 ± 0.061) mPa s matches very well the experimental value of 1.77 mPa s reported by Henni et al. . cient of (0.7064 ± 0.0018) × 10 -9 m 2 s -1 , however, is about 14% larger than the experimental self-diffusion coefficient of 0.61 × 10 -9 m 2 s -1 determined via pulse field gradient 1 H NMR at 303 K for a pure triglyme solvent. From the self-diffusion coefficients and the viscosities we have computed hydrodynamic radii R hyd , given in Table . The ratio of the linear diameters s X provided in Table ] ionic liquid at p = 1 bar using orthorhombic unit cells with L z /L x = L z /L y ≈ 2.7933596497 for system sizes between 768 and 6144 molecules or ion pairs. The average densities of these systems are listed as averages over all system sizes in Table . The true self-diffusion coefficients D 0 of all components and shear viscosities η in addition to the system size dependent self-diffusion coefficients in z-direction D PBC,zz of all components are reported for all three systems and system sizes in Table . Again, Table summarizes the self-diffusion coefficients and viscosities obtained as weighted averages over all systems.