Viscosity of Drive-Line Lubricants by a Special Mini-Rotary Viscometer Technique 1999-01-3672
Current specifications for automatic-transmission fluids and gear oils have viscosity limits which are determined by ASTM D 2983. However, that test is plagued by poor precision. This paper describes the development of a method using the Mini-Rotary Viscometer to make the determination of apparent viscosity at the same nominal shear stress as ASTM D 2983.
In this test procedure, samples are cooled in a manner similar to that described in ASTM D 2983. Experimental data were obtained on a mixture of 17 automatic-transmission and gear-oil fluids that included a number of different formulation strategies and commercial products. The results of this method yield a nearly one to one correlation with the results determined by ASTM D 2983.
Citation: Lloyd, W., Perez, J., Pruden, D., Henderson, K. et al., "Viscosity of Drive-Line Lubricants by a Special Mini-Rotary Viscometer Technique," SAE Technical Paper 1999-01-3672, 1999, https://doi.org/10.4271/1999-01-3672. Download Citation
Author(s):
Wallis A. Lloyd, Joseph M. Perez, Derek Pruden, Kenneth O. Henderson, David L. Alexander
Affiliated:
The Pennsylvania State University, Cannon Instrument Company, Alexander Technologies
Pages: 10
Event:
International Fuels & Lubricants Meeting & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Test procedures
Lubricant viscosity
Gears
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