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“Hot Tube Test”-Analysis of Lubricant Effect on Diesel Engine Scuffing
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1984 by SAE International in United States
Annotation ability available
To prevent engine scuffing in the field a new laboratory test called the Hot Tube Test has been established in order to evaluate the high temperature stability of diesel engine oils. In a strip mining application field test using 47 bulldozers powered by the same engine type, half of the engines suffered from piston scuffing failures when operated on a variety of commercially available API CD quality SAE 30 Grade engine oils. All the field test oils have been investigated using the Hot Tube Test, and an analysis of the results indicates that it would be possible to accurately predict scuffing failures by this test method. Furthermore, the reliability of this analysis has been verified by bench engine testing on reference oils. The reasons why the Hot Tube Test predicts the anti-scuffing performance of engine oils are discussed.
|Ground Vehicle Standard||Two-Stroke-Cycle Engine Oil Fluidity/Miscibility Classification|
|Technical Paper||Nitro-Oxidation of Lubricating Oil in Heavy-Duty Diesel Engine|
|Technical Paper||Relationships Among Oil Composition, Combustion-Generated Soot, and Diesel Engine Valve Train Wear|
CitationOhkawa, S., Seto, K., Nakashima, T., and Takase, K., "“Hot Tube Test”-Analysis of Lubricant Effect on Diesel Engine Scuffing," SAE Technical Paper 840262, 1984, https://doi.org/10.4271/840262.
- Hsu S.M., “Review of Laboratory Bench Tests in Assessing the Performance of Automotive Crankcase Oils” Lubrication Engineering Vol. 37, 12, 722-731 (1981)
- Hot Tube Test Procedure, Amoco Chemicals Co., Naperville, Ill.
- Nasch H., Bramnetz H.G., Gajring M., “Evaluation of Piston Cleanliness of High-Quality Diesel Engine Oils in the MWM-B Test Method CEC L-12-A-76” SAE 801344
- Shell Chemical Technical Information, October (1981)
- Amoco Chemical Information
- “Tentative Test Method - Ford Tonado Bore Polishing Test - For Development of Performance Test for Lubricants and Engine Fuels” CEC IGL 5, April 1979