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The Oxidation Stability of General Motors Proposed Factory-Fill Automatic Transmission Fluid
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 1, 1992 by SAE International in United States
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Using standard industry tests, the oxidation stability of General Motors current factory-fill automatic transmission fluid (ATF) was compared to that of a proposed factory-fill ATF to be introduced for the 1995 Model Year. Full-scale transmission tests and Aluminum Beaker Oxidation Tests run at various temperatures showed that a proposed factory-fill fluid is substantially more resistant to oxidation than the current factory-fill ATF. Using Total Acid Number increase (Δ-TAN) as the measure of oxidation, a minimum of 35% improvement was obtained with a proposed factory fill. This improvement at least doubles the time to “perceived fluid failure” (Δ-TAN = 2.5).
CitationKemp, S. and Linden, J., "The Oxidation Stability of General Motors Proposed Factory-Fill Automatic Transmission Fluid," SAE Technical Paper 922371, 1992, https://doi.org/10.4271/922371.
- Haviland M. L., Anderson R. L., Davison E. D., Goodwin M. C., Osborne R. E., “DEXRON®-II Automatic Transmission Fluid Performance”, SAE Paper No. 740053.
- Deen H. E., Ryer J., “Automatic Transmission Fluid - Properties and Performance”, SAE Paper No. 841214.
- DEXRON®-IIE Automatic Transmission Fluid Specification, GM-6137M, Third Edition, General Motors Corporation, October 1990.
- MERCON® Automatic Transmission Fluid Specification, WSP-M2C185-A, Ford Motor Company, February 1987.
- Willermet P. E., Kandah S. K., “The Aluminum Beaker Oxidation Test for MERCON® WORLD-Wide Service ATF”, SAE Paper No.881673.
- Gergel W. C., “Lubricant Additive Chemistry”, The Lubrizol Corporation, May 1984.