November 2021

HIGH-TEMPERATURE / HIGH-SHEAR TEST (ASTM D5481) HIGH-TEMPERATURE / HIGH-SHEAR TEST (ASTM D5481) simulates shearing conditions at elevated temperatures.  The viscosity of the oil is measured at 302 F (150 ° C) under shearing forces, and results are reported in centipoise (cP).  The higher the test result, the greater the level of protection offered by the

NOACK VOLATILITY TEST (ASTM D5800) Simply put, lower oil volatility offers reduced oil burn-off and keeps valves clean. When comparing motor oils the industry maximum limit is 15%. When choosing an oil, the lower the Volatility percentage is better. NOACK VOLATILITY TEST (ASTM D5800) The most common method used in measuring oil volatility is the

CLEVELAND OPEN CUP TEST (ASTM D92) The Cleveland Open Cup Test (ASTM D92) measures flash and fire points of an oil. This test is intended for fluids having a flash point of 175 ° F (79.4 ° C) and above. A fixed volume of fluid is heated at a uniform rate while open to the

Pour Point Test Method While certain regions may never have to contend with extremely cold temperatures, it should be noted that lubricants with lower pour points may also aid in increased fuel economy, energy efficiency, and ease of starting. The most common method for determining the pour point of oil is the Standard Pour Point

Understanding Cold Crank Simulator Viscosity The COLD CRANK SIMULATOR (CCS) Viscosity Test is used to determine the internal fluid friction in motor oils with a “W” grade designation. This test is calculated in cP units as well, and measures the amount of energy required to overcome the resistance present in a lubricant that has been

Viscosity Index (VI) Test The Viscosity Index (VI) Test (ASTM D2270) is based on the kinematic viscosity of the fluid at 104 ° F (40 ° C) and 212 ° F (100 ° C). Fluids whose viscosities do not change much between these two temperatures will have higher viscosity indices than those whose viscosity changes

Kinematic Viscosity Test (ASTM D445) Procedure KINEMATIC VISCOSITY TEST (ASTM D445) Kinematic viscosity is commonly determined under high temperatures using the American Society for Testing and Materials (ASTM D445) Viscosity Test. This test uses a uniformly marked or calibrated tube called a viscometer and a heating bath. The temperature of the bath is set at