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Evaluation of Piston Cleanliness of High-Quality Diesel Engine Oils in the MWM-B Test Method CEC L-12-A-76
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Abstract
European Diesel engine design, test facilities and test costs has created the necessity for test procedures designed to evaluate the performance of engine lubricants in European engine test laboratories. This situation may be compared with the application of Caterpillar engine test procedures in the U.S.A.
In this discussion the MWM-B, CEC L-12-A-76 procedure, is reviewed under the following headings:
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Outline of test method
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Discrimination between reference and European commercial oils
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Correlation with field service requirements of production multi-cylinder Diesel engines
Application of the MWM-B procedure and comparison of results obtained with singlegrade and multigrade Diesel engine oils.
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Citation
Nasch, H., Brammertz, H., and Gairing, M., "Evaluation of Piston Cleanliness of High-Quality Diesel Engine Oils in the MWM-B Test Method CEC L-12-A-76," SAE Technical Paper 801344, 1980, https://doi.org/10.4271/801344.Also In
References
- Brammertz H.G. “The Modified MWM Test Method for Screening Engine Oils up to S-3 Level within 50 Hours” IP-Preprint 1973
- Gairing M. “Verschärfung der Prüfbedingungen im Einzylinder-Ölprüfmotor MWM KD 12E nach DIN 51 361” Mineralöltechnik 4 1974
- CEC L-12-A-76 “Performance of Heavy-Duty Engine Lubricating Oils under Severe Operating Conditions” 1977 Co-ordinating European Council 61 New Cavendish Street, London W1 M8AR
- DIN 51 361 “Prüfung von Motorenschmierölen im MWM-Prüfdieselmotor” 1977 Beuth Verlag GmbH Berlin
- Kaiser R. Gottschalk G. “Elementare Tests zur Beurteilung von Meβdaten” Hochschultaschenbücher 774 Bibliographisches Institut Mannheim / Wien / Zürich
- Nasch H. “Prüfverfahren in Einzylinder- Prüfmotoren - Prüfung von Motorenölen für den erschwerten Dieselbetrieb” Mineralötechnik 5 1980
- Nasch H. “Motorenölerprobung im MWM KD 12E Prüfmotor nach Verfahren B” Compendium 76/77, Erdöl and Kohle, Petrochemie
- ASTM “Single Cylinder Engine Tests for Evaluating the Performance of Crankcase Lubricants, Part 1, Caterpillar 1G2 Test Method” ASTM STP 509 A