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Enhanced Fuel Economy Retention from an Ultra-Low Ash Heavy Duty Engine Oil
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 2, 2019 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Diesel particulate filters are remarkably efficient in reducing emissions of particulate matter from heavy-duty diesel engines. However, their efficiency and performance are negatively impacted by contaminants derived from consumed engine lubricant. This accumulation of incombustible ash imparts a fuel economy penalty due to increased system backpressure and demand for more frequent regeneration events. This study documents a systematic evaluation of lubricant impacts on DPF ash loading, system performance, and fuel economy. A novel, ultra-low ash heavy-duty engine oil demonstrates significant advantages in aged systems when compared to tests using conventional lubricants. The ultra-low ash oil yields a significantly lower ash loading that is also more dense therefore offering extended DPF maintenance interval and potential for 3% fuel economy retention benefit. These advantages offer potential for significant reduction in cost to operate and maintain a DPF equipped engine.
CitationWhitacre, S. and Van Dam, W., "Enhanced Fuel Economy Retention from an Ultra-Low Ash Heavy Duty Engine Oil," SAE Technical Paper 2019-01-0732, 2019, https://doi.org/10.4271/2019-01-0732.
Data Sets - Support Documents
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- McGeehan, J., Moritz, J., Shank, G., Kennedy, S. et al., “API CJ-4: Diesel Oil Category for Pre-2007 Engines and New Low Emission Engines Using Cooled Exhaust Gas Recirculation and Diesel Particulate Filters,” SAE Technical Paper 2007-01-1966, 2007, doi:10.4271/2007-01-1966.
- Noguchi, S., Sogawa, Y., Kawaguchi, H., and Kono, N., “A Quantitative Study of Fuel Efficiency of Diesel Vehicles with Diesel Particulate Filter in Repeated Test Cycles,” SAE Technical Paper 2012-01-1704, 2012, doi:10.4271/2012-01-1704.
- McGeehan, J., Yeh, S., Rutherford, J., Couch, M. et al., “Analysis of DPF Incombustibles Materials from Volvo Trucks Using DPF-SCR-Urea With API CJ-4 and API CI-4 PLUS Oils,” SAE Int. J. Fuels Lubr. 2(1):762-780, 2009, doi:10.4271/2009-01-1781.
- McGeehan, J., Yeh, S., Couch, M., Hinz, A. et al., “On The Road to 2010 Emissions Field Tests Results and Analysis With DPF-SCR System and Ultra-Low Sulfur Diesel Fuel,” SAE Technical Paper 2005-01-3716, 2005, doi:10.4271/2005-01-3716.
- Sappok, A., Santiago, M., Vianna, T., and Wong, V., “Characteristics and Effects of Ash Accumulation on Diesel Particulate Filter Performance: Rapidly-Aged and Field-Aged Results,” SAE Technical Paper 2009-01-1086, 2009, doi:10.4271/2009-01-1086.
- Sappok, A. and Wong, V., “Detailed Chemical and Physical Characterization of Ash Species in Diesel Exhaust Entering Aftertreatment Systems,” SAE Technical Paper 2007-01-0318, 2007, doi:10.4271/2007-01-0318.
- Sappok, A., Wong, V., Morrow, R., Zisholtz, E. et al., “Investigation of Ash Formation, Accumulation, and Distribution in Diesel Particulate Filters Using Lubricant Additive Tracers,” in Proceedings ASME 2011 Internal Combustion Division Fall Technical Conference ICEF 2011, Oct. 2-5, 2011.
- Bardasz, E., Mackney, D., Britton, N., Kleinschek, G. et al., “Investigations of the Interactions Between Lubricant-Derived Species and Aftertreatment Systems on State-of-the-Art Heavy-Duty Diesel Engine,” SAE Technical Paper 2003-01-1963, 2003, doi:10.4271/2003-01-1963.
- Sappok, A. and Wong, V., “Ash Effects on Diesel Particulate Filter Pressure Drop Sensitivity to Soot and Implications for Regeneration Frequency and DPF Control,” SAE Int. J. Fuels Lubr. 3(1):380-396, 2010, doi:10.4271/2010-01-0811.
- Liu, Y., Su, C., Clerc, J., Harinath, A. et al., “Experimental and Modeling Study of Ash Impact on DPF Backpressure and Regeneration Behaviors,” SAE Int. J. Engines 8(3), 2015, doi:10.4271/2015-01-1063.
- Zöllner, C. and Brueggemann, D., “Studies on the Influence of Engine Conditions and Different Ash Levels on the Regeneration Behavior of Particulate Filters,” SAE Technical Paper 2018-01-1704, 2018, doi:10.4271/2018-01-1704.
- Mc Geehan, J., Van Dam, W., Narasaki, K., Boffa, A. et al., “Extending the Boundaries of Diesel Particulate Filter Maintenance With Ultra-Low Ash - Zero-Phosphorus Oil,” SAE Int. J. Fuels Lubr. 5(3), 2012, doi:10.4271/2012-01-1709.
- McGeehan, J., Van Dam, W., Nelson, K., Boffa, A. et al., “Minimizing Diesel Particulate Filter Incombustibles by Using Ultra Low Ash - Zero Phosphorus Oil,” SAE Int. J. Fuels Lubr. 7(3):890-900, 2014, doi:10.4271/2014-01-2798.
- World Harmonized Stationary Cycle: https://www.dieselnet.com/standards/cycles/whsc.php.
- World Harmonized Transient Cycle: https://www.dieselnet.com/standards/cycles/whtc.php.