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New Components for Improving Antiwear Performance in Modern Engine Lubricants
Published September 29, 2010 by Society of Automotive Engineers of Japan in Japan
Fuel economy, emission control and enhanced durability are three key technical requirements that drive modern engine oil formulation. These drivers tend to constrain the use of conventional ash-containing molecules that ameliorate wear. However, durability must be maintained or even enhanced. New classes of multifunctional ash-less molecules are described that reduce wear and enable the use of less zinc dithiophosphate. Furthermore, synergy is described between the new molecules and ash-containing components such as Ca detergents. The mechanism of action of the molecules will be discussed.