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Low Temperature Fluidity of Lubricating Oils Under Slow Cool Conditions
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 31, 1983 by SAE International in United States
Annotation ability available
A Slow Cool Fluidity Test (SCFT) was developed to detect gelation of oils. In this test, SAE 10W multigrade oils of known poor field experience solidified at temperatures ranging from − 11 to − 17°C. The test was based on field temperature histories, and was found to be more reliable than other standard and experimental industry tests in detecting gelation tendencies. The SCFT consists of a 0.10° C per hour cool from above the oil's cloud point to the lowest use temperature expected. Fluidity is determined by the time for the oil to flow 30 mm when a standard ASTM pour point test jar is turned from vertical to horizontal. The effect of additives such as pour point depressant type and quantity can be determined by utilizing the SCFT.
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CitationSchmidt, G., Olsen, M., and Michael, M., "Low Temperature Fluidity of Lubricating Oils Under Slow Cool Conditions," SAE Technical Paper 831718, 1983, https://doi.org/10.4271/831718.
- Stewart R. M., Smith M. F. Jr., Shaub H., & Selby T. W., “Summary of ASTM Activities on Low Temperature Engine Oil Pumpability”, SAE Paper 821206, presented at SAE Fuels & Lubricants Meeting, October 1982.
- Stambaugh R. L. and O'Mara J. H., “Low Temperature Flow Properties of Engine Oils”, SAE Paper 821247, presented at SAE Fuels & Lubricants Meeting, October 1982.
- Texaco Chemical Company, Additive Division, Report on “Low Temperature Performance of Motor Oils”, dated June 1982.
- Rohm and Haas Company, Report on “Low-Temperature Engine Pumpability Update - January 1983”.
- Exxon Chemical Company, Report TB-PM-823 on “Low Temperature Pumpability Performance of Engine Oils”.
- Stambaugh R. L., SAE Fuels & Lubricants Technical Committee, Subcommittee Two on Engine Oils, Task Force on Engine Oil Viscosity Classification, letter dated November 15, 1982, on subject of “Low Temperature Pumpability of Engine Oils”, addressed to Subcommittee Two”.
- Shaub H., Smith M. F. & Murphy C. K., “Predicting Low Temperature Engine Oil Pumpability with the Mini-Rotary Viscometer”, SAE Paper 790732, presented at SAE Passenger Car Meeting, June, 1979.
- McMillan M. T., Stewart R. M., Smith M. F. & Rein S. W., “Low-Temperature Engine Oil Pumpability in Full-Scale Engines”, SAE Paper 750691, presented al SAE Fuels & Lubricants Meeting, June, 1975.
- Murphy C. K. & Green W. A., Discussion of SAE Paper 710139, SAE Transactions, Vol, 80 (1971).
- McMillan M. L. & Murphy C. K., “The Relationship of Low-Temperature Rheology to Engine Oil Pumpability”, SAE Paper 730478.
- McNab J. G., Rogers D. T., Michaels A. E., and Hodges C. E., “Pour-Point Stability of Winter-Grade Motor Oils”, SAE Quarterly Transactions, Vol. 2, No. 1, Jan 1948, presented at SAE National Fuels & Lubricants Meeting, November 1946.
- O'Mara J. H., ASTM Committee D-2 on Petroleum Products & Lubricants, Research & Development Division VII on Flow Properties, Section C on Non-Newtonian Low Shear Stress, Task Force on Stable Pour Point, letter dated June 3, 1982, on subject of “Cycle C Soft Metrication Cooldown Patterns”, addressed to Members of Task Force”.
- Selby T. W, & Plante D. L., “New Approach to Low Temperature Pumpability Measurements”, oral presentation at SAE Fuels & Lubricants Meeting, October, 1982.