Using Ionic Liquid Additive to Enhance Lubricating Performance for Low-Viscosity Engine Oil
Abstract
Energy efficient lubricants are essential for sustainable transportation, and the trend is to develop and implement lower viscosity lubricants with more effective additives. Ionic liquids (ILs) have been reported as candidate additives with superior friction and wear reducing capabilities. Unlike most literature relying on bench-scale testing of simple oil–IL blends, this study produced low-viscosity (SAE 0W-12) fully formulated engine oils using a phosphonium-organophosphate IL as an antiwear additive and evaluated them in both bench-scale tribological testing and full-scale fired engine dynamometer testing. The experimental formulation containing a combination of ZDDP and IL outperformed the formulations using either ZDDP or IL alone, as well as a commercial SAE 0W-20 engine oil in terms of mitigating boundary friction, wear, and contact fatigue-induced micropitting. Furthermore, racing engine dynamometer tests demonstrated 3–4 °C lower oil temperature, 4–5 ft-lbs higher horsepower output, and up to 9.9% better fuel economy for the IL-containing SAE 0W-12 experimental oil compared with selected commercial SAE 5W-30 and 0W-20 engine oils.
- Authors:
-
[1];
[1];
[1]
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Driven Racing Oil, Memphis, TN (United States)
- General Motors, Warren, MI (United States). Research & Development Center
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office
- OSTI Identifier:
- 1798600
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- ACS Sustainable Chemistry & Engineering
- Additional Journal Information:
- Journal Volume: 9; Journal Issue: 21; Journal ID: ISSN 2168-0485
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; low viscosity engine oil; micropitting; ionic liquid; fully formulated oil; engine test; salts; additives; lipids; friction; wear
Citation Formats
Kumara, Chanaka, Speed, Lake, Viola, Michael B., Luo, Huimin, and Qu, Jun. Using Ionic Liquid Additive to Enhance Lubricating Performance for Low-Viscosity Engine Oil. United States: N. p., 2021.
Web. doi:10.1021/acssuschemeng.1c00745.
Kumara, Chanaka, Speed, Lake, Viola, Michael B., Luo, Huimin, & Qu, Jun. Using Ionic Liquid Additive to Enhance Lubricating Performance for Low-Viscosity Engine Oil. United States. https://doi.org/10.1021/acssuschemeng.1c00745
Kumara, Chanaka, Speed, Lake, Viola, Michael B., Luo, Huimin, and Qu, Jun. Fri .
"Using Ionic Liquid Additive to Enhance Lubricating Performance for Low-Viscosity Engine Oil". United States. https://doi.org/10.1021/acssuschemeng.1c00745. https://www.osti.gov/servlets/purl/1798600.
@article{osti_1798600,
title = {Using Ionic Liquid Additive to Enhance Lubricating Performance for Low-Viscosity Engine Oil},
author = {Kumara, Chanaka and Speed, Lake and Viola, Michael B. and Luo, Huimin and Qu, Jun},
abstractNote = {Energy efficient lubricants are essential for sustainable transportation, and the trend is to develop and implement lower viscosity lubricants with more effective additives. Ionic liquids (ILs) have been reported as candidate additives with superior friction and wear reducing capabilities. Unlike most literature relying on bench-scale testing of simple oil–IL blends, this study produced low-viscosity (SAE 0W-12) fully formulated engine oils using a phosphonium-organophosphate IL as an antiwear additive and evaluated them in both bench-scale tribological testing and full-scale fired engine dynamometer testing. The experimental formulation containing a combination of ZDDP and IL outperformed the formulations using either ZDDP or IL alone, as well as a commercial SAE 0W-20 engine oil in terms of mitigating boundary friction, wear, and contact fatigue-induced micropitting. Furthermore, racing engine dynamometer tests demonstrated 3–4 °C lower oil temperature, 4–5 ft-lbs higher horsepower output, and up to 9.9% better fuel economy for the IL-containing SAE 0W-12 experimental oil compared with selected commercial SAE 5W-30 and 0W-20 engine oils.},
doi = {10.1021/acssuschemeng.1c00745},
journal = {ACS Sustainable Chemistry & Engineering},
number = 21,
volume = 9,
place = {United States},
year = {Fri May 14 00:00:00 EDT 2021},
month = {Fri May 14 00:00:00 EDT 2021}
}
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