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Methylenebis(dibutyldithiocarbamate) is an additive in some extreme pressure gear oils, serving as an antioxidant and protecting metal surfaces. [ 1 ] The early extreme pressure additives were based on lead salts of fatty acids ("lead soaps "), "active sulfur" compounds (e.g. thiols and elementary sulfur), and chlorinated compounds.
EP additives which contain phosphorus/sulfur compounds are corrosive to yellow metals such as the copper and/or brass used in bushings and synchronizers, unless properly buffered; the GL-1 class of gear oils does not contain any EP additives and thus used to be the choice in applications which contain parts made of yellow metals.
Timken OK Load is a standardized measurement that indicates the possible performance of extreme pressure (EP) additives in a lubricating grease or oil. The units of measurement are pounds-force or kilograms-force. This measurement is performed using a special test machine and standard block and ring test specimens.
Tricresyl phosphate (TCP), used for high-temperature operation, often used as an AW and EP additive in turbine engine lubricants, and also in some crankcase oils and hydraulic fluids; Halocarbons (chlorinated paraffins), for extreme pressure operations; Glycerol mono oleate
Pages in category "Gear oils" ... Gear oil; H. Hydraulic fluid; S. SAE J306 This page was last edited on 18 July 2008, at 17:30 (UTC). Text is available under ...
Castrol products are still marketed under the red, white and green colour scheme that dates from the launch of Castrol motor oil in 1909. Advertisements for Castrol oil historically featured the slogan "Castrol – liquid engineering". This was more recently refreshed and reintroduced as "It's more than just oil. It's liquid engineering." [27] [28]
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