EUROPEAN ACTIVITY CONCERNING ENGINE OIL VISCOSITY CLASSIFICATION--PART III
As a follow up to earlier publications, this paper reports on recent work carried out in Europe, within CEC, in the field of high shear rheology aimed at defining a simple method to measure viscosity as seen by the engine. Seven SAE 15W-50 calibration oils were tested in a large number of high shear viscometers, engine tests and rigs in order to determine if any correlation was possible. The work has shown that the low shear viscosity does not correlate with the behaviour of the oil in the engine and that the viscosity under high shear conditions is from 70 to 90% of the low shear viscosity. Correlation was found between high shear viscometers and power loss/oil-flow in engines. Further work on lower viscosity oils is underway.
Warrendale, PA USA 15096
- Ingoni, A C
- Di Lelio, G F
- Van Os, N
- Vickars, M
- Publication Date: 1980-2
- Pagination: 12 p.
- TRT Terms: Classification; Engine oils; Flow; Rheological properties; Shear strength; Viscosity
- Subject Areas: Geotechnology; Highways; Materials; Vehicles and Equipment; I35: Miscellaneous Materials;
- Accession Number: 00319769
- Record Type: Publication
- Report/Paper Numbers: SAE 800546
- Files: TRIS
- Created Date: Dec 30 1980 12:00AM