National refinery data sheet Lube Base Oil Specifications Acid No. mg KOH/g of Lube ASTM D-974 Max. Viscosity Index = VI Min. Notes – Market Names Pour Point CD-97 Max. Flash Point C COC D-92 Min. Conradson Carbon wt . % D-189 Max. Color ASTM D-1500 Max. Aged for 24 Hrs. at 100C-Color ASTM D-1500Max….
In 1990 API established a base oil classification system to help marketers minimize re-testing costs when blending licensed engine oils with base oils from different manufacturing sources. The system uses physical and chemical parameters to divide all base stocks into 5 groups as listed below: API – Classification of Base Oils Group Saturate wt %…
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