Densities and viscosities of mixtures of monoethanolamine (MEA) + ethylene glycol (EG) + water were measured at temperatures of (30, 40, 50, 60, and 70) degrees C. The concentration ranges were 0 to 84.7 mass % for both water and EG at 15.3 mass % MEA and 0 to 70.0 mass % for both water and EG at 30.0 mass % MEA. The experimental values were correlated as functions of temperature. The maximum deviations were less than 0.01% for densities and 0.4% for viscosities.