The two most important properties of liquids which control their flow behavior are viscosity and density. Density is the mass of a material per unit volume. The viscosity is the ability of a fluid to resist deformation, and is a measure of the tendency of a fluid to flow, e.g., molasses has a higher viscosity than water.
Viscosity is highly temperature dependent, and has common units of centipoise.
Therefore, the two fluids will physically flow about the same. However, with respect to flow through porous media, surface tension is extremely important. Therefore, water will be held in an unsaturated porous media by surface tension to a much greater degree than carbon tetrachloride, i.e., the permeability of porous media will be different with respect to each liquid. The ramifications are important for contaminant transport and remediation of mixed wastes. Other NAPLs often present in the subsurface are petroleum, oils, tars, and biological fluids.