LUBRICANT FACTORS AFFECTING PASSENGER CAR OIL CONSUMPTION

This paper presents the results of recent field tests on passenger car motor oils to determine the lubricant factors affecting oil consumption. The lubricants covered a wide range of viscosity and viscosity index, and included a synthetic oil and twelve mineral oils having zero, low, or high V.I. improver concentrations. V.I. improvers of different types and viscosity stabilities were included. A method of predicting the oil consumption characteristics of a wide variety of oil types has been developed from these results.