1. CTAS
  2. All Volumes and Issues
  3. Volume 5, Number 2
  4. STUDY OF CHANGES IN PERFORMANCE PROPERTIES OF ELF EVOLUTION 700 STI SEMI-SYNTHETIC ENGINE OIL AFTER USE IN GASOLINE ENGINE

STUDY OF CHANGES IN PERFORMANCE PROPERTIES OF ELF EVOLUTION 700 STI SEMI-SYNTHETIC ENGINE OIL AFTER USE IN GASOLINE ENGINE

CTAS.
2022;
Volume 5, Number 2
: 79-87
https://doi.org/10.23939/ctas2022.02.079
Authors:
  1. R. I. Procop
  2. Oleg Grynyshyn
  3. Taras Chervinskyy
  4. Viktoria Kochubei
1
Lviv Polytechnic National University
2
Lviv Polytechnic National University
3
Lviv Polytechnic National University
4
Lviv Polytechnic National University

The paper describes the results of research on changes in the performance of fresh and used semi- synthetic motor oil ELF Evolution 700 STI for gasoline engines of cars. The change of physicochemical properties of fresh and used semi-synthetic motor oil before and after its use in a gasoline engine has been studied. The results of derivatographic and IR spectroscopic studies of these oils are presented. The composition of the inorganic part of the studied semi-synthetic oils was determined by the method of X-ray fluorescence research.

semi-synthetic motor oil; waste oil; thermal decomposition; oil aging; X-ray fluorescence analysis; IR spectra.
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