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Development of Low-Ash Type Heavy Duty Diesel Engine Oil for After-Treatment Devices
Technical Paper
2004-01-1955
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In order to meet the increasingly tough emission regulations on diesel vehicles, automobile manufacturers in Japan are focusing on the development of diesel particulate filters (DPFs), nitrogen-oxide-reducing catalysts so-called deNOx catalysts, and other technology for reducing exhaust gases. In order to reduce catalyst poisoning, diesel fuel with a sulfur content of 50 ppm or lower-one-tenth the previous level-was put on the market in Japan in April 2003. At the same time, guidelines took effect for the new DH-2 and DL-1 standards for diesel engine oils compatible with after-treatment devices; the full regulations are scheduled to come into force in 2005. The newly developed low-ash diesel engine oil described here contains a reduced amount of metallic detergents, thus lowering the sulfated ash content to about two-thirds that of conventional high-ash oil. The results of the tests specified by DH-2 confirm that the developed oil is similar or superior to high-ash oils in all of main performances (detergency, wear control, base number retention, and metal corrosion). Through tests on engines equipped with DPFs, the developed oil has also been confirmed to be compatible with DPFs, and the oil's good long-drain performance has been confirmed in a year-long fleet test.
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Kurihara, I., Takeshima, S., and Yashima, H., "Development of Low-Ash Type Heavy Duty Diesel Engine Oil for After-Treatment Devices," SAE Technical Paper 2004-01-1955, 2004, https://doi.org/10.4271/2004-01-1955.Also In
Engine Lubricants, Effects of Fuels and Lubricants on Automotive Devices, and Lubricant Applications and New Test Methods
Number: SP-1885; Published: 2004-06-08
Number: SP-1885; Published: 2004-06-08
References
- Web site of the Tokyo Metropolitan Government
- Kagaya et al. “Performance of low-ash diesel engine oil (Part 2),” Journal of Japanese Society of Tribologists 41 11 1996
- JCAP technical report “Diesel vehicles (6): Survey of effect of oil ash on continuous-regeneration DPFs,” 2002
- Sherwood D L Vonhagn W J Mckinnon D L “Evaluation of a wall flow diesel filter after > 4000 hours of use on an underground mining vehicle” SAE Paper No. 912336 1991
- Saito K. Ikeda Y. Ichihara S. “Fuel and Lubricant Effect on Durability of Catalytic Trap Oxidizer(CTO) for Heavy Duty Diesel Engines” SAE Paper No. 880010 1988
- Clark W. et al. SAE Paper No. 2000-01-1879 2000
- Amon B. Keefe G. “On-Road Demonstration of NOx Emission Control for Heavy-Duty Diesel Trucks using SINOx Urea SCR technology - Long-term Experience and Measurement Results” SAE Paper No. 2001-01-1931 2000
- Ito K. “JASO DX-2 Activities Update” 8 TH Annual Fuels & Lubes Asia Conference 2002
- McGeehan J. A. et al. “API CI-4: The First Oil Category for Diesel Engines Using Cooled Exhaust Gas Recirculation” SAE 2002-01-1673 2002