The Viscosity Stability of Multigraded Crankcase Oils 680070
The viscosity stability of polymer-thickened multigraded oils measured by the sonic oscillator failed to correlate with road test data when polymers of different chemical types were compared. A single cylinder Labeco CLR engine test procedure has been developed which correlates well with road tests and is independent of the chemical type of polymer used. Approximately 40 hr in the Labeco CLR engine are equivalent to 2000 miles of high speed driving.
Citation: Preuss, A., Stambaugh, R., and Radtke, H., "The Viscosity Stability of Multigraded Crankcase Oils," SAE Technical Paper 680070, 1968, https://doi.org/10.4271/680070. Download Citation
Author(s):
A. F. Preuss, R. L. Stambaugh, H. H. Radtke
Affiliated:
Research Div., Rohm and Haas Co.
Pages: 8
Event:
1968 Automotive Engineering Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Road tests
Test procedures
Crankcases
Engine cylinders
Chemicals
Polymers
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