This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Effect of ZDDP Type on Phosphorus Volatility: Engine Oil Performance on Sequence IIIG and Field Tests
Technical Paper
2013-01-2570
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Zinc dialkyldithiophosphates (ZDDPs) provide efficient and effective anti-wear, anti-oxidation and anti-corrosion properties in engine oil formulations. Two kinds of formulated engine oils were investigated including Oil 1 containing secondary ZDDPs, and Oil 2 containing primary/secondary ZDDPs. It revealed that different types of ZDDPs exhibits different volatilities and have different effects in the Sequence IIIG test. ZDDPs with higher molecular weight alcohols exhibit a relatively low volatility. The combination of primary/secondary ZDDPs exhibits higher phosphorus volatility in the Sequence IIIG, but have the same anti-wear protective behavior than that of the secondary ZDDPs in field tests. The field test results of phosphorus volatility and viscosity increase show encouraging agreement with the results of the Sequence IIIG test. However, the field test exhibits lower phosphorus volatility than the Sequence IIIG engine test. Results of used oil analyses showed that the wear elements, viscosity, TAN increase and TBN retention were in acceptable limits at the end of the field test.
Recommended Content
Authors
Topic
Citation
Wang, L., Wang, L., Li, G., and Xu, X., "The Effect of ZDDP Type on Phosphorus Volatility: Engine Oil Performance on Sequence IIIG and Field Tests," SAE Technical Paper 2013-01-2570, 2013, https://doi.org/10.4271/2013-01-2570.Also In
References
- Rokosz MJ et al. Characterisation of phosphorous poisoned automotive exhaust catalysts Applied Catalysis B: Environmental 2001 33 205
- Uy , D. and O'Neill , A. Raman Studies of Automotive Catalyst Deactivation SAE Technical Paper 2006-01-0409 2006 10.4271/2006-01-0409
- Damen , A. , Broom , N. , Hartley , R. , and Riley , M. Evaluation of SAE 0W-20 GF-4 Prototype Formulation in Severe Taxi Fleet Service SAE Technical Paper 2005-01-3818 2005 10.4271/2005-01-3818
- ASTM Specification D4485-2010 Standard Specification for Performance of Engine Oils 2010
- Selby T W et al. Analysis of engine oil and phosphorus volatility - development and use of the Selby-Noack apparatus to recover and study phosphorus volatiles 11th International Colloquium, Ecological and Economic Aspects of Tribology Esslingen, Germany 1998
- Selby T W et al. Development and Significance of the Phosphorus Emission Index of Engine Oils Proceedings of 13th International Colloquium Lubricants, Materials and Lubrication Engineering Esslingen, Germany 93 102 2002
- Selby T W et al. Phosphorus Volatility of Lubricants - Use of the Phosphorus Emission Index of Engine Oils 9th F&L Asia Conference Singapore January 21 24 2003
- Johnson , M. Catalyst contamination by phosphorus from engine oils - emission effects and transport processes ILSAC-Oil Meeting Romulus, Michigan July 10 2002
- Johnson , M. , McCabe , R. , Hubbard , C. , Riley , M. et al. Effects of Engine Oil Formulation Variables on Exhaust Emissions in Taxi Fleet Service SAE Technical Paper 2002-01-2680 2002 10.4271/2002-01-2680
- Selby T W et al. Phosphorus Additive Chemistry and Its Effects on the Phosphorus Volatility of Engine Oils
- 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 10.4271/2007-01-1990
- Bardasz , E. , Schiferl , E. , Nahumck , W. , Kelley , J. et al. Low Volatility ZDDP Technology: Part 2 - Exhaust Catalysts Performance in Field Applications SAE Technical Paper 2007-01-4107 2007 10.4271/2007-01-4107