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American Petroleum Institute (API)
Dec 24, 2017

API is the abbreviation of American Petroleum Institute. Engine lubricants are evaluated against the American Petroleum Institute (API), SJ, SL, SM, SN, CH-4, CI-4, CI-4 PLUS, CJ-4, CK and FA as well as International Lubricant Standardization and Approval Committee (ILSAC) GF-3, GF-4 and GF-5, and Cummins, Mack and John Deere requirements. SJ,SL,SM,SN is to describe the gasoling engine oil quality. CH-4, CI-4, CI-4 PLUS, CJ-4, CK is to describe diesel engine oil quality. GF-3, GF-4 and GF-5 is to describe gear oil quality. These evaluations include chemical and physical properties using bench test methods as well as actual running engine tests to quantify engine sludge, oxidation, component wear, oil consumption, piston deposits and fuel economy.

The API sets minimum for performance standards for lubricants. Motor oil is used for the lubricating, cooling, and cleaning of internal combustion engines. Motor oil may be composed of only a lubricant base stock in the case of non-detergent oil, or a lubricant base stock plus additives to improve the oil's detergency, extreme pressure performance, and ability to inhibit corrosion of engine parts.


December 24th, 2017

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    Mobile:+86-13677379280
    E-mail:caoyuepeng@lopal.cn
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