Premium
Antioxidant properties of engine oil detergent additives
Author(s) -
Vipper A. B.
Publication year - 1996
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.3010090103
Subject(s) - antioxidant , chemistry , copper , zinc , catalysis , metal , organic chemistry , chemical engineering , engineering
Abstract The antioxidant properties of engine calcium sulphonate, phenate and salicylate detergent additives were investigated. Their influence on engine oil oxidation both in the presence of metallic copper, oil‐soluble copper compounds, and without any catalyst, was studied. The influence of the detergent type and its basicity on oil antioxidant properties was determined. The specific influence of the co‐operative action of detergent additives and zinc dithiophosphate on the antioxidant properties of engine oil formulations with these additives was established. The results obtained revealed various new patterns concerning the oil oxidation process, and allowed us to characterise the process of depletion of detergent additives during oil ageing.