Surfactants automatic transmission fluids

Abdul et al. (7) studied the performance of commercially available anionic and nonionic surfactants to clean a sandy soil contaminated with automatic transmission fluid (ATF). Using a batch shaker method, Abdul et al. mixed 5 g of contaminated soil with 100 mL of 0.5% by volume surfactant solution fw min. After the soil settled. 

Many applications of surfactants in lubricants and fuels have a common purpose, namely to reduce or prevent the formation of deposits by the degradation products of lubricants and fuels. In lubricant applications, surfactants serve in various roles. In crankcase oils, surfactants reduce and prevent sludge formation and deposit formation in pistons, cylinders, and valve train systems [1]. They also reduce and prevent sludge formation in the reservoirs of transmission fluids, gear oils, and industrial oils, and keep parts clean by prevention of deposit formation on metal parts. In addition, they provide friction control in friction interfaces as in automatic transmissions. 

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