This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Development of an API SN, SAE 0W-20 Engine Lubricating Oil for Tropical Climate using a New Novel Viscosity Modifier and Verification of Its Performance via a Field Trial in Thailand
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 13, 2014 by SAE International in United States
Annotation ability available
Engine lubrication in the global automotive industry has many challenges in the world today. One of them is the pursuit of fuel economy which has resulted in the growing popularity of lower viscosity engine oils. However, engine wear protection of low viscosity oils is not as robust as for higher viscosity grade oils. Due to this, low viscosity grade engine oils, such as SAE 0W-20, are not common in tropical climates, though they could provide the added benefit for fuel economy. To address these two seemingly discordant performance characteristics, PTT has developed a new API SN, SAE 0W-20 engine oil with a novel viscosity modifier and conducted a field trial with extended oil drain intervals to gain a better understanding of its performance in tropical climates, especially its wear protection performance in passenger cars.
Results from the field trial showed that the new novel viscosity modifier was able to maintain excellent shear stability compared to the reference oil throughout both phases of tests. On top of this, the candidate oil matched the reference oils' fuel economy while maintaining a higher kinematic viscosity. Engine inspections also showed comparable performance in sludge and wear; as well as excellent performance over the reference oil in deposits control. The data from this exercise showed the candidate formulation to be suitable for use in tropical climates and was able to provide excellent wear and deposits control under long drain interval conditions.
CitationPredapitakkun, S. and Sukajit, P., "Development of an API SN, SAE 0W-20 Engine Lubricating Oil for Tropical Climate using a New Novel Viscosity Modifier and Verification of Its Performance via a Field Trial in Thailand," SAE Technical Paper 2014-01-2779, 2014, https://doi.org/10.4271/2014-01-2779.
- Shibuya , N. , Onogawa , K. , Akasaka , Y. , Mochida , O. et al. Watanabe Development of a Low Friction Piston with a New Flexible Skirt Structure for a 3.5-L V6 Gasoline Engine SAE Technical Paper 2002-01-0491 2002 10.4271/2002-01-0491
- Permude , A. , Pathak , M. , Kumar , V. , and Singh S. Influence of Low Viscosity Lubricating Oils on Fuel Economy and Durability of Passenger Car Diesel Engine SAE Int. J. Fuels Lubr. 5 3 1426 1435 2012 10.4271/2012-28-0010
- Korcek , S. , Nakada , M. Engine Oil Performance Requirements & Reformulation for Future Engines & Systems Proceedings of the International Tribology Conference 1995
- Thailand Board of Investment Thailand Investment Review 17 7 July 2007
- Ministry of Energy, Department of Energy Business http://www.doeb.go.th/info/value_fuel.php
- Stöhr , T. , Eisenberg , B. , Müller , M. Öllösliche Kammpolymere, DE 10 2005 031 244
- Wincierz , C. , Hedrich , K. , and Müller , M. Formulation of Multigrade Gear Oils for High Efficiency and Low Operating Temperature SAE Technical Paper 2002-01-2822 2002 10.4271/2002-01-2822
- Clevenger J.E. , Carlson D.C. , Kleiser W.M. The Effects of Engine Oil Viscosity and Composition on Fuel Efficiency SAE Paper No. 841389 , Fuel and Lubricants Meeting and Exposition Baltimore, Maryland October 1984
- Tanaka , H. , Nagashima , T. , Sato , T. , and Kawauchi , S. The Effect of 0W-20 Low Viscosity Engine Oil on Fuel Economy SAE Technical Paper 1999-01-3468 1999 10.4271/1999-01-3468
- Watanabe , N. Study of Lower Viscosity Motorcycle Engine Oils for Fuel Saving SAE Technical Paper 2010-32-0123 2010 10.4271/2010-32-0123
- Stöhr , T. , Eisenberg , B. , and Müller , M. A New Generation of High Performance Viscosity Modifiers Based on Comb Polymers SAE Int. J. Fuels Lubr. 1 1 1511 1516 2009 10.4271/2008-01-2462