This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Advantages and Challenges for Low Viscosity Oils in Emergent Countries
Technical Paper
2017-36-0387
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Low viscosity combined with appropriated additive technology is one of the main paths to reduce friction on Internal Combustion Engines. Japan is on the cutting edge of low viscosity oils, having already available SAE 0W-8 in the market. On the other hands, in emergent countries like Brazil, SAE 15W-40 is still used in some passenger cars while the Japanese origin car brands use SAE 0W-20. Lubricant friction additives type also differs depending on the original equipment manufacturer (OEM) origin, and the Japanese ones usually containing high amounts of the Molybdenum type.
In this paper, some of the advantages and challenges of using low viscosity oils are discussed and emphasis is given in the friction reduction obtained with the synergic effects of the right choice of additives components type and the material/coating used in the engine parts.
Ring-liner rig and floating liner engine tests comparing different oils will be presented. Detailed lubricant tribofilm analysis help to explain the complex tribo-chemical phenomena with different oils.
Recommended Content
Technical Paper | Frictional and Forming Behavior of Zinc-Coated Steel Sheets |
Technical Paper | Clearance Control Coatings - Low Cost, Abradable, Lubricious |
Technical Paper | Engine Bearings - From Design to Maintenance |
Authors
Topic
Citation
Galvão, C., Tomanik, E., Fujita, H., Paes, E. et al., "Advantages and Challenges for Low Viscosity Oils in Emergent Countries," SAE Technical Paper 2017-36-0387, 2017, https://doi.org/10.4271/2017-36-0387.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 | ||
Unnamed Dataset 4 | ||
Unnamed Dataset 5 |
Also In
References
- Schommers , J. et al. Minimizing Friction in Combustion Engines MTZ 07-08/2013 74 2013
- Holmberg , K. Andesson , P. , Erdemir , A. Global Energy consumption due to friction in passenger cars Tribology Intern. 47 221 234 2012
- Nagashima , T. Viscosity Reduction Technology for Fuel-efficient Engine Oils Idemitsu Tribo Review number 37 2014
- Fujita , H. Fuel Economy Engine Oil for US and EU OEM Idemitsu Tribo Review number 38 2015
- Tamura , K. et al. Influence of shear-thinning of polymer-containing engine oils on friction at the piston ring-cylinder liner interface SAE Paper 2013-01-2567 2013
- Tamura , K. et al. Impact of boundary lubrication performance of engine oils on friction at piston ring-cylinder liner interface SAE Int J Fuel Lubr 7 3 2014
- Profito , F. et al. Effect of lubricant viscosity and friction modifier on reciprocating tests SAE paper 2013-36-0155 2013
- Tomanik , E. Friction and Wear Bench Tests of Different Engine Liner Surface Finishes Tribology International 41 1032 1038 2008
- Tomanik , E. ; Ferrarese , A. Low friction ring pack for gasoline engines ASME 2006 Int. Combustion Engine Division Fall Technical Conference 449 455 24 2006
- International workshop “Super-lubricity in the automotive real world Summary report 2015 10.13140/RG.2.1.1582.3440 http://www.lfs.usp.br/superlubricity2015
- Tomanik , E. et al. Investigation Of PVD Piston Ring Coatings With Different Lubricant Formulations ASME ICEF 2017
- Furuhama , S. ; Takiguchi , M. Measurement of Piston Frictional Force in Actual Operating Diesel Engine SAE technical paper 790855 1979