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Low Volatility ZDDP Technology: Part 1 - Engines and Lubricant Performance in Field Applications
Technical Paper
2007-01-1990
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Newly developed, low volatility zinc dialkyldithiophosphate (ZDDP) technology significantly reduces the amounts of volatile phosphorus (P) species while retaining their antiwear protective behavior and antioxidant performances. In the past researchers gathered a variety of engine data supporting the hypothesis that P volatility can have a significant impact on catalytic converter efficiency, but corresponding field performance results were limited.
A recent field trial was conducted with New York City taxi cabs that provided extended sets of engine and drain performance parameters data. This trial compared side-by-side performance of oils formulated with conventional and low volatility ZDDPs. Following completion of the test, the extensive engine inspections and used oil analysis revealed excellent antiwear control and oxidation inhibition with both types of ZDDP technologies. Furthermore, the amount of volatile P produced by novel ZDDP that is capable of interacting and deactivating the three way catalysts was cut in half.
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Authors
- Ewa A. Bardasz - The Lubrizol Corporation, Wickliffe, Ohio 44092, USA
- Elizabeth Schiferl - The Lubrizol Corporation, Wickliffe, Ohio 44092, USA
- William Nahumck - The Lubrizol Corporation, Wickliffe, Ohio 44092, USA
- Jack Kelley - The Lubrizol Corporation, Wickliffe, Ohio 44092, USA
- Lewis Williams - The Lubrizol Corporation, Wickliffe, Ohio 44092, USA
- Michael J. Riley - Ford Motor Company, Dearborn, Michigan 48121, USA
- Carolyn P. Hubbard - Ford Motor Company, Dearborn, Michigan 48121, USA
Citation
Bardasz, E., Schiferl, E., Nahumck, W., Kelley, J. et al., "Low Volatility ZDDP Technology: Part 1 - Engines and Lubricant Performance in Field Applications," SAE Technical Paper 2007-01-1990, 2007, https://doi.org/10.4271/2007-01-1990.Also In
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