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Developing Next Generation Axle Fluids: Part I - Test Methodology to Measure Durability and Temperature Reduction Properties of Axle Gear Oils
Technical Paper
2002-01-1691
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Light trucks and sport utility vehicles (SUVs) have become extremely popular in the United States in recent years, but this shift to larger passenger vehicles has placed new demands upon the gear lubricant. The key challenge facing vehicle manufacturers in North America is meeting government-mandated fuel economy requirements while maintaining durability. Gear oils must provide long-term durability and operating temperature control in order to increase equipment life under severe conditions while maintaining fuel efficiency.
This paper describes the development of a full-scale light duty axle test that simulates a variety of different driving conditions that can be used to measure temperature reduction properties of gear oil formulations. The work presented here outlines a test methodology that allows gear oil formulations to be compared with each other while accounting for axle changes due to wear and conditioning during testing. Results are shown from a variety of different axle configurations and loading conditions. This test method shows the importance of accounting for changes in the axle when comparing test results whenever severe conditions are experienced.
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Citation
Akucewich, E., Vinci, J., Qureshi, F., and Cain, R., "Developing Next Generation Axle Fluids: Part I - Test Methodology to Measure Durability and Temperature Reduction Properties of Axle Gear Oils," SAE Technical Paper 2002-01-1691, 2002, https://doi.org/10.4271/2002-01-1691.Also In
References
- U.S. Code of Federal Regulations Title 40 26 Part 600 Fuel Economy of Motor Vehicles
- O'Connor, B.M. Lubricant Effect on Operating Temperature in Axle and Transmission Applications Esslingen Colloquium January 1996
- Brettell, T. Gray, C.T. “Basic Statistics, Precision, Discrimination, Correlation and Basic Good Practice for Test Development Activity in CEC” CEC P-224-97 B-1160 Brussels, Belgium April 1997
- Witte, R.S. Statistics Holt, Rinehart and Winston New York 1980