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The API sets minimum performance standards for lubricants. Motor oil is used for the lubrication , cooling, and cleaning of internal combustion engines . Motor oil may be composed of only a lubricant base stock in the case of mostly obsolete non- detergent oil, or a lubricant base stock plus additives to improve the oil's detergency, extreme ...
A large number of additives are used to impart performance characteristics to the lubricants. Modern automotive lubricants contain as many as ten additives, comprising up to 20% of the lubricant, the main families of additives are: [1] Pour point depressants are compounds that prevent crystallization of waxes.
A sample of synthetic motor oil. Synthetic oil is a lubricant consisting of chemical compounds that are artificially modified or synthesised. Synthetic oil is used as a substitute for petroleum-refined oils when operating in extreme temperature, in metal stamping to provide environmental and other benefits, and to lubricate pendulum clocks.
ExxonMobil to Expand High-Performance Synthetic Lubricants Capacity in Louisiana New facilities to include synthetic base stocks manufacturing and finished lube blending and packaging More than ...
LA and LB: chassis lubricants (suitability up to mild and severe duty respectively) GA, GB and GC: wheel-bearings (suitability up to mild, moderate and severe duty respectively) A given performance category may include greases of different consistencies. [11] The measure of the consistency of grease is commonly expressed by its NLGI consistency ...
Speciality chemicals are materials used on the basis of their performance or function. Consequently, in addition to "effect" chemicals they are sometimes referred to as "performance" chemicals or "formulation" chemicals. They can be unique molecules or mixtures of molecules known as formulations. The physical and chemical characteristics of the ...