Comparison of tribological performances of sulfur based and boron succuminide containing antiwear additive with ZDDP by engine bench tests
Abstract
Purpose
This study aims to evaluate and compare by 100 hours engine bench tests the tribological performances of two types of lubrication oils, which were sulfur-based, boron succinimide-containing antiwear package (NP-3) oil and conventional zinc dialkyldithiophosphate (ZDDP)-containing (R-1) oil.
Design/methodology/approach
The tribological performances of the oils were evaluated in three main contexts, including engine tests, physical/chemical changes and surface analysis.
Findings
Results showed that NP-3 lubrication oil, which was environment- and catalyst-friendly, can be an alternative lubrication oil with its tribological performance due to similar antiwear characteristics with the ZDDP.
Originality/value
Attempts to develop catalysis- and environment-friendly antiwear additive packages have not presented popular or commonly used ZDDP-free products for the vehicle industry. This study presents tribological characterization of a newly developed ZDDP-free lubricating oil by engine bench tests.
Keywords
Acknowledgements
The authors would like to thank Dr Hirosi Fujita and Idemitsu Kosan Co. Ltd., petrochemical company in Japan, for their oil support in this work; Dr Oğuzhan Gürlü from Istanbul Technical University for optical microscopy supports; and KUYTAM in Koç University for SEM/EDX analysis. This research has been supported by Yıldız Technical University Scientific Research Projects Coordination Department. Project Number: 2013-06-01-DOP01.
Citation
Özkan, D., Yağci, M.B., Birer, Ö. and Kaleli, H. (2016), "Comparison of tribological performances of sulfur based and boron succuminide containing antiwear additive with ZDDP by engine bench tests", Industrial Lubrication and Tribology, Vol. 68 No. 4, pp. 482-496. https://doi.org/10.1108/ILT-11-2015-0173
Publisher
:Emerald Group Publishing Limited
Copyright © 2016, Emerald Group Publishing Limited