Engine oil compositions based on PIB-succinimide combinations

L. Bartha, G. Kis, J. Hancsók, J. Baladincz

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3 Citations (Scopus)


Additive packages for engine oils were prepared using PIB-succinimide combinations with different properties. PIB-succinimide-type dispersants of various average molecular weights and dominant side effects were selected for preparing multifunctional additive combinations. A high-molecular-weight PIB-polysuccinimide type as viscosity-index improver, a PIB-polysuccinimide with strong basic character as a highly effective sludge dispersant, molybdenum-containing polyalkylene-polysuccinic anhydride derivatives as dispersants with complementary antifriction efficiency, and some conventional detergent, antioxidant, antiwear, and anticorrosion engine oil additives were used in engine oil compositions of various viscosity grades. The technical and economic advantages of appropriately selected and balanced additive combinations were shown by bench test results of the rheological, detergent-dispersant, and antifriction properties of the test oils.

Original languageEnglish
Pages (from-to)347-359
Number of pages13
JournalLubrication Science
Issue number4
Publication statusPublished - Aug 2004



  • Additive packages
  • Engine oil
  • Multifunctional additives
  • Pib-succinimide combinations

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Materials Chemistry

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