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The MS Sequence Tests Today
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1966 by SAE International in United States
Annotation ability available
Event: National West Coast Meeting
The MS Sequences were introduced in 1958 to give the automotive and the oil industries a common basis for predicting field performance of motor oils. The sequences have been revised periodically to reflect changes in field conditions.
Comparisons of laboratory with field data show that the sequences are generally successful in predicting motor-oil performance. Sequences IIA IIIA, adopted in 1965, give better repeatability, reproducibility, and field-test correlations than original Sequences I, II, III. Proposed Sequence VB, which uses an engine with a PCV valve, is being evaluated. The reliability of the antiwear evaluation in the sequences is questionable and indicates need for further revisions.
Military qualification tests have been revised to include many of the motor-oil performance parameters evaluated by MS Sequences. However, different policies regarding test engines have thwarted any movement to consolidate the two series of tests.
CitationColyer, C., "The MS Sequence Tests Today," SAE Technical Paper 660540, 1966, https://doi.org/10.4271/660540.
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- Lindley D. J. “Corrosion Testing in Laboratory Engines.” Paper presented at ASLE Annual Meeting Detroit May 1965
- “Engine Test Sequence for Evaluating Oils for API Service MS,” ASTM STP 315B, American Society for Testing Materials 1966
- CRC Deposit Rating Symposium held at Southwest Research Institute San Antonio October 1965