This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Development of Long Life Engine Oil Using Substituent Additive for ZnDTP
Technical Paper
2007-01-1992
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Engine oil combined with SPZn instead of ZnDTP shows excellent total base number (TBN) retention in oxidation and NOx gas bubbling tests. The wear resistance of engine oil combined with SPZn was similar to oil combined with ZnDTP in a four-ball test.
Prototype engine oils with 1.0 wt% of sulfated ash and 0.04wt%-0.09wt% of SPZn-derived phosphorus were prepared and a JASO valve train wear test was performed on them. The wear resistance of engine oil including SPZn with P = 0.09 wt% was greater than that of engine oil including ZnDTP. This result shows the possibility of reduce the phosphorus in engine oil by using SPZn.
Recommended Content
Authors
- Hirotaka Yamasaki - Lubricants Research Laboratory, Idemitsu Kosan Co., Ltd.
- Motoharu Ishikawa - Lubricants Research Laboratory, Idemitsu Kosan Co., Ltd.
- Hideki Kamano - Lubricants Research Laboratory, Idemitsu Kosan Co., Ltd.
- Hiroaki Koshima - Central Research Laboratory, Idemitsu Kosan Co., Ltd.
- Shinya Iizuka - Central Research Laboratory, Idemitsu Kosan Co., Ltd.
Citation
Yamasaki, H., Ishikawa, M., Kamano, H., Koshima, H. et al., "Development of Long Life Engine Oil Using Substituent Additive for ZnDTP," SAE Technical Paper 2007-01-1992, 2007, https://doi.org/10.4271/2007-01-1992.Also In
References
- Hashimoto, T. ENGINE TECHNOLOGY 8 1 46 2006
- Yagishita, K. Technical Trends in Automobile Engine Oils ENGINE TECHNOLOGY 8 4 50 2006
- Yagishita, K. Igarashi, J. 31 P NMR and Mass Spectrometric Studies of the Reaction of Zinc Dialkylditiophosphates with Cumene Hydroperoxide Sekiiyugakkaishi 38 1995
- Dickert, J.J. Rowe, C.N. J. Org. Chem. 32 3 647 1967