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An On-Board Method of Measuring Motor Oil Degradation
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English
Abstract
The performance of an on-board oil quality sensor is evaluated and shown to reliably measure motor oil degradation in real-time over the temperature range found in a vehicle. This sensor operates by utilizing a conductive polymeric matrix to track the change in the solvent properties of an oil. Tracking oil degradation by a change in its solvent properties provides a means of directly measuring 1) oil oxidation and 2) water and antifreeze contamination. The sensor shows a relatively constant signal between fresh oils but offers a clear separation between degraded oils. Results are shown to compare favorably with complementary methodologies including infrared spectroscopy, differential scanning calorimetry, thermogravimetic analysis, dielectric analysis, and metal analysis.
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Citation
Voelker, P. and Hedges, J., "An On-Board Method of Measuring Motor Oil Degradation," SAE Technical Paper 962112, 1996, https://doi.org/10.4271/962112.Also In
References
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