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Nitro-Oxidation of Lubricating Oil in Heavy-Duty Diesel Engine
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English
Abstract
In order to extend the oil drain interval and to prolong the engine service life, we have investigated the effects of engine load and wear on heavy-duty diesel engine oil deterioration and oil filter plugging. Furthermore, effects of oil quality on oil deterioration has also been studied.
We have found in this study that the increase of blow-by gas flow due to excessive wear of engine components causes severe nitro-oxidation in heavy-duty diesel engines at a high engine load conditions similar to that observed in gasoline engines. The nitro-oxidation of engine oil also causes filter plugging. From the oils tested, the high ash oil showed better anti-nitro-oxidation performance than those with low ash.
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Citation
Iwakata, K., Onodera, Y., Mihara, K., and Ohkawa, S., "Nitro-Oxidation of Lubricating Oil in Heavy-Duty Diesel Engine," SAE Technical Paper 932839, 1993, https://doi.org/10.4271/932839.Also In
Tribological Insights and Performance Characteristics of Modern Engine Lubricants
Number: SP-0996; Published: 1993-10-01
Number: SP-0996; Published: 1993-10-01
References
- Miyahara M. Wtanabe Y. Naitoh Y. “Investigation into Extending Diesel Engine Oil Drain Interval (Part 1)- Oil Drain Interval Extension by Increasing Efficiency of Filtering Soot in Lubricating Oil,” SAE 912339 1991
- Naitoh Y. Hosonuma K. Tamura K. “Investigation into Extending Diesel Engine Oil Drain Interval (Part 1)-Development of Long Drain Diesel Engine Oil Having Low Soot Dispersancy,” SAE 912340 1991
- Nakamura K. Matsumoto E. Kurosaka S. Murakami Y. “Effect of Ventilation and Lubricants on Sludge Formation Passenger Car Gasoline Engines” SAE 881577 1988
- Ohkawa S. Seto K. Nakasima T. Takase K. “Hot Tube Test-Analysis of Lubricant Effect on Diesel Engine Scuffing” SAE 8402621 1984