This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Developing High-Performance Motorcycle Oils
Published January 24, 2020 by Society of Automotive Engineers of Japan in Japan
This content contains downloadable datasetsAnnotation ability available
Published motorcycle lubricant research often focuses on developments to meet certain specifications, regulatory requirements, or a combination of the two. Seemingly missing from the literature is research where the primary goal is development of a lubricant that enables maximum torque, power and acceleration from a machine for the purpose of winning races. The present study combines the two areas of research, where a high-performance motorcycle engine oil platform is developed to be used in competition, while simultaneously meeting the necessary regulations and specifications to be useful for commuters and leisure riders alike. Well-known are the demands on a motorcycle oil, which must lubricate and protect the crankcase, clutch and gears, all of which have competing requirements such that a strategy to improve the performance in one area can cause a detriment in another. Formulating for racing engines that are typically much more powerful than production versions further exacerbates these dichotomies, where the traditional strategies for gaining power through the lubricant of reducing viscosity or adding friction-reducing chemistries can leave the clutch and gears open to severe damage. To meet these competing demands, a novel additive system with unique anti-wear and friction modifier chemistries was introduced to ensure clutch and gear protection while simultaneously improving power output and minimizing deleterious effects to aftertreatment devices. Further, the oils were designed to withstand the higher temperatures, speeds and power densities found in high performance machines through improved antioxidants, base stocks and shear-stable polymers, which also provide durability across the oil drain interval for leisure riders and commuters alike. Through a combination of performance bench testing, engine dynamometer testing and field testing on the track, it was demonstrated that substantial power gains can be achieved while still maintaining hardware protection, thus achieving the goal of a high-performance racing oil that is also suitable for everyday use.
CitationMarcella, M. and Johnson, A., "Developing High-Performance Motorcycle Oils," SAE Technical Paper 2019-32-0505, 2020.
Data Sets - Support Documents
|Unnamed Dataset 1|
- Oppelt , M. , Schwarz , F. , Eibl , R. , and Gaitan , P. Preparing BMW Motorrad’s Boxer Engine for the Future: Improving Performance, Driveability and Efficiency While Fulfilling Future Emissions Standards SAE Technical Paper 2018-32-0083 2018 10.4271/2018-32-0083
- Bevilacqua , V. , Corvaglia , G. , Fuoss , K. , and Penzel , M. Study of a Turbocharged Engine for Motorbike Application SAE Technical Paper 2018-32-0079 2018 10.4271/2018-32-0079
- Zhang , Y. , Hanthorn , J. , Wilkes , M. , Chamberlain , J. et al. Developing Efficient Motorcycle Oils SAE Technical Paper 2018-32-0021 2018 10.4271/2018-32-0021
- Lainé , E. , Olver , A.V. , Lekstrom , M. F. , Shollock , B.A. et al. 2009 The Effect of a Friction Modifier Additive on Micropitting Tribology Transactions 52 4 526 533 10.1080/10402000902745507
- Mihara , Y. 2017 Research Trend of Friction Loss Reduction in Internal Combustion Engines Tribology Online 12 3 82 88 10.2474/troll.12.82
- Ushioda , N. 2013 A Study of Fuel Economy Additive Formulation Technology for Passenger Car Motor Oil and Development of a Screener Test for Fuel Economy Tribology Online 8 1 64 67 10.2474/troll.8.64