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 […]
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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
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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
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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
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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
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What Does Total Base Number Mean in Oil? Total Base Number (TBN) of a lubricant indicates its ability to neutralize contaminants such as combustion byproducts and acidic materials. It is a measure of (alkaline) additives in the oil. Higher-TBN oils are able to neutralize a greater amount of acidic materials, which results in improved protection
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What is the meaning of LSPI? LSPI is an acronym – Low-Speed Pre-Ignition. It’s a type of engine knock that occurs in turbocharged gasoline direct-injected engines under low-speed, high-torque conditions and is more destructive than typical engine knock. What causes Low-Speed Pre-Ignition? Under normal operation, spark-triggered ignition is timed to work in tandem with downward
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100% Synthetic vs Full Synthetic Before 1998 the term “100% Synthetic” meant that the base oils by regulation had to be Group 4 and 5 “Synthetic” Base Oil. This is because Groups 1, 2 & 3 were classified as “Conventional” Mineral Base Oil. Over 50 years ago AMSOIL was the First to develop an API-rated 100%
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LSPI is a hot topic in the lubricant industry because it can destroy pistons and connecting rods. Auto manufacturers need to extract every bit of fuel economy from the vehicles they produce in order to meet increasingly stringent government regulations. Manufacturers can make fuel-economy gains in today’s vehicles by adjusting vehicles’ programming, but those changes
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