An apparatus configured to automatically test sag properties of drilling fluids, comprising: a test cell; a first pump in fluid communication with the test cell, wherein the first pump is operable to introduce a sample drilling fluid into the test cell; a second pump in fluid communication with the test cell, wherein the second pump is operable to impart a pre-determined test pressure on the sample drilling fluid within the test cell via an isolation piston within the test cell; a density transducer in fluid communication with a top opening of the test cell, wherein the density transducer is operative to measure a density of the sample drilling fluid; and an automated control system, wherein the automated control system 300 is configured to: operate the first pump to introduce the sample drilling fluid into the test cell; operate the second pump to impart the pre-determined test pressure on the sample drilling fluid within the test cell; further operate the second pump to displace sample drilling fluid from the top of the test cell out of the test cell for measurement by the density transducer; operate the density transducer to measure the density of the sample drilling fluid displaced out of the test cell for a plurality of measurements, each measurement corresponding to a different volume of sample drilling fluid displaced from the test cell by operation of the second pump; and receive measurements from the density transducer to generate a top-to-bottom density profile of the drilling fluid relative to the volume of fluid displaced from the test cell as information related to the sag properties of the sample drilling fluid. a test cell; a first pump in fluid communication with the test cell, wherein the first pump is operable to introduce a sample drilling fluid into the test cell; a second pump in fluid communication with the test cell, wherein the second pump is operable to impart a pre-determined test pressure on the sample drilling fluid within the test cell via an isolation piston within the test cell; a density transducer in fluid communication with a top opening of the test cell, wherein the density transducer is operative to measure a density of the sample drilling fluid; and an automated control system, wherein the automated control system 300 is configured to: operate the first pump to introduce the sample drilling fluid into the test cell; operate the second pump to impart the pre-determined test pressure on the sample drilling fluid within the test cell; further operate the second pump to displace sample drilling fluid from the top of the test cell out of the test cell for measurement by the density transducer; operate the density transducer to measure the density of the sample drilling fluid displaced out of the test cell for a plurality of measurements, each measurement corresponding to a different volume of sample drilling fluid displaced from the test cell by operation of the second pump; and receive measurements from the density transducer to generate a top-to-bottom density profile of the drilling fluid relative to the volume of fluid displaced from the test cell as information related to the sag properties of the sample drilling fluid. operate the first pump to introduce the sample drilling fluid into the test cell; operate the second pump to impart the pre-determined test pressure on the sample drilling fluid within the test cell; further operate the second pump to displace sample drilling fluid from the top of the test cell out of the test cell for measurement by the density transducer; operate the density transducer to measure the density of the sample drilling fluid displaced out of the test cell for a plurality of measurements, each measurement corresponding to a different volume of sample drilling fluid displaced from the test cell by operation of the second pump; and receive measurements from the density transducer to generate a top-to-bottom density profile of the drilling fluid relative to the volume of fluid displaced from the test cell as information related to the sag properties of the sample drilling fluid.