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New 150-Hour Test for SAE and MIL Specification Approval of Aircraft Piston-Engine Lubricants
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Abstract
Aviation piston engine lubricating oils undergo extensive testing prior to their approval for use. During the revision of MIL-L-22851/J-1966 specifications, it was determined that a standardized engine test would be utilized. A Textron-Lycoming TIO-540-J2BD engine was selected as the engine for the 150-hour endurance test. Federal Aviation Regulation Part 33 served as the guideline for development of a standardized test specifically aimed at lubricating oil evaluation.
This paper discusses this new 150-hour endurance test for piston engine lubricants used to gain SAE and MIL approval. This new test was conducted at the University of Illinois-Institute of Aviation during 1990.
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Authors
Citation
Ziegler, C., "New 150-Hour Test for SAE and MIL Specification Approval of Aircraft Piston-Engine Lubricants," SAE Technical Paper 911000, 1991, https://doi.org/10.4271/911000.Also In
References
- Military Specification MIL-L-22851 “Lubricating Oil, Aircraft Reciprocating Engine”
- Garrelts Weldon E. Poitz H. A. “Certification of Reciprocating Engine Aircraft Oils and Additives by Supplemental Type Certification Procedures” Paper 850899 SAE General Aviation Aircraft Meeting and Exposition Wichita, Kansas April 1985
- Garrelts Weldon E. “Evaluation of Multi-Viscosity Oils Designed for Aircraft Reciprocating Engines” Paper 810572 SAE Business Aircraft Meeting Wichita, Kansas April 1981
- Poitz Herb A. Garrelts Weldon E. “History of Aircraft Piston Engine Oils--The Last Forty Years” Paper 891037 SAE General Aviation Aircraft Meeting Wichita, Kansas April 1989