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Engine Oil MS Test Sequences IIA and IIIA
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Abstract
Engine oil test Sequences IIA and IIIA have been developed to replace Sequences I, II, and III. These new sequences are designed to evaluate lubricants for use in current passenger car engines under severe (MS) service conditions. Lubricant performance is evaluated with respect to scuffing wear, rust, corrosion, deposits, and rumble.
The Sequence IIA and IIIA test procedure involves major changes which affect the evaluation of engine rusting and provides improved correlation between test results and short-trip service. Average engine rust ratings correlate with service data within ±0.5 numbers. The new test also provides better repeatability and reproducibility in a significantly shorter schedule. The rust repeatability and reproducibility is less than ±0.2 and ±0.6 numbers, respectively. Test time has been reduced 52%.
Authors
Citation
Kabel, R. and Bennett, P., "Engine Oil MS Test Sequences IIA and IIIA," SAE Technical Paper 650867, 1965, https://doi.org/10.4271/650867.Data Sets - Support Documents
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References
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- October 1965
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