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Biodiesel and Fuel Dilution of Engine Oil
Technical Paper
2007-01-4036
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In this work fuel dilution of engine oil, and the impact of biodiesel fuel on dilution, were examined. New emissions requirements have driven the adoption of a range of aftertreatment systems for diesel engines. These aftertreatment devices in many cases have specific requirements for exhaust composition and temperature. Meeting these requirements can lead to fuel dilution of the engine oil. Measurement of fuel dilution of engine oil can be challenging, and in this study a new strategy for utilizing Fourier Transform Infrared Spectroscopy (FTIR) was examined. A synthetic component of aviation oil, pentaerythritol ester (PE), was found to be a very useful tracer for measuring dilution with ultra low sulfur diesel (ULSD), but not useful for measuring dilution with B20. Fuel dilution and evaporation rates were measured for both ULSD and for a blend of biodiesel and ULSD (B20). Fuel dilution rates were found to be higher for B20 as compared to ULSD due to the higher distillation temperatures of methyl ester.
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Citation
Andreae, M., Fang, H., and Bhandary, K., "Biodiesel and Fuel Dilution of Engine Oil," SAE Technical Paper 2007-01-4036, 2007, https://doi.org/10.4271/2007-01-4036.Also In
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