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The Effect of Polymer Type Upon Performance of Multigrade Oils in Petrol and Diesel Engines
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English
Abstract
The three main VI Improvers for multigrade engine oils, Polyalkyl-Methacrylate, Ethylene-Propylene-Copolymer and Diene-Styrene-Copolymer were compared with respect to their effect upon
Viscosity-temperature relationship
Viscosity as a function of shear stress and thermal oxidation
Wear protection
Deposit formation
The results showed considerable differences in polymer effect. Interesting properties in one area are not necessarily an indication of satisfactory performance in others. Selection of different polymers appears necessary for diesel and petrol engine lubricants.
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Citation
Schödel, U., "The Effect of Polymer Type Upon Performance of Multigrade Oils in Petrol and Diesel Engines," SAE Technical Paper 760271, 1976, https://doi.org/10.4271/760271.Also In
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