Scientific and technical journal

«Proceedings of Gubkin University»

ISSN 2073-9028

Proceedings of Gubkin University

UDC: 665.6
DOI: -


Yagoda Maria I.1,
Bagdasarov Leonid N.1,
Tonkonogov Boris P.1

1 Gubkin Russian State University of Oil and Gas

Keywords: thermal stability, fluid for stepless gearboxes (automatic transmission), continuously variable transmission (CVT), ATF, base oil of API group III, Yubase 4, LUKOIL VHVI 4


The Russian fleet of vehicles with automatic transmission is growing very rapidly. In this regard, the task of developing oils for automatic transmissions based on domestic raw materials is becoming very urgent. We studied the low-viscosity base oils of API Group III to determine their applicability for automatic gear to meet present-day requirements. Comparative testing of ATF (automatic transmission fluid) samples showed that oils prepared using domestic LUKOIL VHVI 4 (isomerization product of wax concentrates) as a base oil are of high quality and can be used both in hydro-mechanical transmissions requiring oils of DEXRON®-VI level and stepless transmissions. At the same time the oils show high thermo-oxidative stability, excellent low temperature pumpability and excellent viscosity-temperature properties.


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