What is this additive component?

MolaKule

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This additive component is part of the PI package in the oil and is attracted to metal surfaces by strong forces, which can be as high as 13 kcal/mol. On the molecular-surface level, the hydrocarbon tail is left solubilized in the oil, while the polar head is anchored to the metal surface, and both are perpendicular to the metal surface. Furthermore, this leads to a multi-layer matrix of molecules that are difficult to compress but very easy to shear. What do we call this additive component? Guidelines for the Question of the Day: 1. No Piston Cup Lapel Pin will be awarded to the same person within 14 days of a previous award. 2. Please respond with a complete sentence. 3. Please do not post links. If a question arises as to the need for clarification, then sources and links may be requested. 4. Please, no off topic posts.
 
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MolaKule

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We're looking for the functional name or description, not a chemical element. It could be from any of the following: Antifoamant or foam inhibitor Antioxidant or oxidation inhibitor Anti-Wear Extreme Pressure Additive Demulsifier Detergent Dispersant Emulsifier Friction Modifier Metal Deactivator Oxidation Inhibitor Rust Inhibitor Pour Point Depressant Seal Conditioner Surfactants Soot Control or Soot Inhibitor Tackifiers
 
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Originally Posted By: MolaKule
We're looking for the functional name or description, not a chemical element. It could be from any of the following:
I stick with my original answer of "friction modifier".
 

MolaKule

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21,909
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Organic Friction Modifiers are part of the PI package in the oil and are attracted to metal surfaces by strong forces, which can be as high as 13 kcal/mol. On the molecular-surface level, the hydrocarbon tail is left solubilized in the oil, while the polar head is anchored to the metal surface, and both are perpendicular to the metal surface. Furthermore, this leads to a multi-layer matrix of molecules that are difficult to compress but very easy to shear. It is this shearing action that gives rise to a reduction in friction between surfaces. Friction Modifiers and AW Additives Pajamarama stuck to his answer and wins the Piston Cup Lapel Pin, a pin of exotic, non-porous refined metals from the asteriod belt with a top coat of Sherwin Williams glossy resin. thumbsup
 
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