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New Generation Fuel Efficient Engine Oils with Superior Viscometrics
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 08, 2017 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Automobile OEMs are looking for improving fuel economy[1,2] of their vehicles by reducing weight, rolling resistance and improving engine and transmission efficiency apart from the aerodynamic design. Fuel economy may be improved by using appropriate low viscosity  and use of friction reducers (FRs)[4,5] in the engine oils. The concept of high viscosity index  is being used for achieving right viscosity at required operating temperatures.
In this paper performance properties of High Viscosity Index engine oils have been compared with conventional VI engine oils. Efforts have been made to check the key differentiation in oil properties w.r.t. low temperature fluidity, high temperature high shear viscosity/deposits, friction behavior, oxidation performance in bench tribological /engine/chassis dyno tests which finally lead to oil performance assessment. Three candidates of SAE 0W-30 grade oil with ACEA C2/API SN credentials have been chosen using various viscosity modifiers. Impact of viscosity modifiers on cranking, pumping, high temperature high shear viscosity and Kurt Orbahn after shear viscosity have been studied. Bench tests such as SRV/MTM, Four Ball WSD, PDSC, JIS K2514 and TEOST tests are also included in the study. Selected candidates have been evaluated in Seq IV(Wear test) and in an equivalent test to Seq IIIG(High Temp Oxidation) engine test benches. Effect of FRs on fuel economy performance of best candidate has been studied in chassis dyno test on actual vehicle. Results show that Moly as friction modifier in gasoline engine oils has significant effect in reducing deposits, may be due to some synergy with additive package and base oil used. Work also shows that high viscosity index and use of FRs have significant contribution on fuel economy performance. The authors have plan to use this concept in further study of low viscosity engine oils.
|Technical Paper||Super Low Viscosity ATF; AW-2|
|Technical Paper||Development of High Wear Resistant and Durable Coatings for Al Valve Spring Retainer|
- Sarita Seth - Indian Oil Corporation Ltd.
- Swamy Maloth - Indian Oil Corporation Ltd.
- Prashant Kumar - Indian Oil Corporation Ltd.
- Bhuvenesh Tyagi - Indian Oil Corporation Ltd.
- Lokesh Kumar - Indian Oil Corporation Ltd.
- Rajendra Mahapatra - Indian Oil Corporation Ltd.
- Sarita Garg - Indian Oil Corporation Ltd.
- Deepak Saxena - Indian Oil Corporation Ltd.
- R Suresh - Indian Oil Corporation Ltd.
- SSV Ramakumar - Indian Oil Corporation Ltd.
CitationSeth, S., Maloth, S., Kumar, P., Tyagi, B. et al., "New Generation Fuel Efficient Engine Oils with Superior Viscometrics," SAE Technical Paper 2017-01-2349, 2017, https://doi.org/10.4271/2017-01-2349.
Data Sets - Support Documents
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- Sagawa , T. , Ueno , T. , Nakamura , K. , Ishikawa , T. et al. Development of 0W-20 ILSAC GF-3 Gasoline Engine Oil SAE Technical Paper 2002-01-1636 2002 10.4271/2002-01-1636
- 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
- Ishikawa , M. , Yamamori , K. , Hirano , S. , Kowalski , T. et al. Introduction of Fuel Economy Engine Oil Performance Target with New SAE Viscosity Grade SAE Int. J. Fuels Lubr. 9 2 374 382 2016 10.4271/2016-01-0896
- Ito , A. , Chubachi , Y. , Yamamoto , T. , Tanaka , N. et al. A Study on Effects of Low Viscosity Engine Oil and MoDTC on Piston Friction Losses in a DI Diesel Engine SAE Technical Paper 2015-01-2044 2015 10.4271/2015-01-2044
- Inoue , K. , Tominaga , E. , Akiyama , K. , and Ashida , T. Effects of Lubricant Composition on Fuel Efficiency in Modern Engines SAE Technical Paper 951037 1995 10.4271/951037
- Vickerman , R. , Streck , K. , Schiferl , E. , and Gajanayake , A. The Effect of Viscosity Index on the Efficiency of Transmission Lubricants SAE Int. J. Fuels Lubr. 2 2 20 26 2010 10.4271/2009-01-2632
- 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
- Barton , W. , Payne , J. , Baker , M. , O'Connor , B. et al. Impact of Viscosity Modifiers on Gear Oil Efficiency and Durability SAE Int. J. Fuels Lubr. 5 1 470 479 2012 10.4271/2011-01-2128
- Sorab , J. , Korcek , S. , and Bovington , C. Friction Reduction in Lubricated Components Through Engine Oil Formulation SAE Technical Paper 982640 1998 10.4271/982640
- Wong , V.W. & Tung , S.C. Friction 2016 4 1 10.1007/s40544-016-0107-9
- Selby , T. The Use of the Scanning Brookfield Technique to Study the Critical Degree of Gelation of Lubricants at Low Temperatures SAE Technical Paper 910746 1991 10.4271/910746
- Kinker , B. , Souchik , J. , and Neveu , C. The Scanning Brookfield Technique: Background and Evaluation of the Low Temperature Performance of Engine Lubricants SAE Technical Paper 982948 1998 10.4271/982948
- Cerny Jaroslav , Zelinka Miroslav Oxidation Stability of Lubricants Measured by a PDSC Technique Petroleum & Coal 46 3 56 62 2004
- Habitz Michael , Bill Van Bergen Thermo-oxidation Engine Oil Simulation Test Overview A Technical Brief from Savant Labs March 2014