Drainage and imbibition relative permeabilities of brine and Soltrol 160 were determined in a water-wet Berea sandstone sample and in one treated with 2.5% Dri-Film Solution in hexane. Drainage relative permeabilities were also measured in two other Berea sandstone samples, one treated with 1% and the other with 0.02% Dri-Film solution. The Penn State method was used throughout. The dye adsorption capacity of the sample as a function of increasing brine saturation was also determined in every test. A water-wet sample, initially saturated with brine, was oil-flooded, and then water-flooded; two samples, one treated with 5% and the other with 0.02% Dri-Film solution, were initially saturated with Soltrol and then water flooded.