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Correlating viscosity to fuel efficiency in the Daimler OM501 heavy-duty diesel engine fuel efficiency test and the influence of viscosity index improvers (VIIs) Evonik Operations GmBH
- Format:
- Book
- Conference/Event
- Author/Creator:
- Hutchinson, Phil, author.
- Conference Name:
- International Symposium on Fuels and Lubricants (2021-03-15 : Delhi, India)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2021
- Summary:
- Durability remains a primary concern when formulating heavy-duty (HD) diesel engine oils but in future there will be increased attention to fuel efficiency, particularly in Europe where the European Commission is proposing the first ever CO2 emission targets for heavy-duty vehicles. At this moment in time, there are no internationally recognised fuel efficiency tests for HD diesel engines except for some regional and OEM developments pushing in the direction of improved fuel efficiency. Against this background we selected the Daimler OM501 fuel efficiency test as a relevant and important option and used it for the work reported here. A range of multi-grade engine oils meeting the HTHS150C of 2.9cP and 3.5cP were formulated for evaluation in the OM501 fuel efficiency test. In addition to those SAE grades which are normally associated with the xW-30 and xW-40 oils used in HD diesel engines we also included lighter oils of HTHS150°C 2.6 cP. A wide range of VII types were incorporated into this study to achieve a variation in lower temperature viscosity values
- Notes:
- Vendor supplied data
- Publisher Number:
- 2021-28-0015
- Access Restriction:
- Restricted for use by site license
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