1942-01-01

The Testing of HEAVY - DUTY MOTOR OILS 420118

THE work described in this paper was authorized by Subdivision B of the Lubricants Division, SAE Standards Committee, with the view toward the establishment of a test procedure by which so-called heavy-duty motor oils might be evaluated. A further object of this work, carried out by two committees of Subdivision B - an Automotive Committee and a Petroleum Committee, under the chairmanship of Authors Mougey and Moller respectively, was the establishing of limits, in so far as engine designs are concerned, for the stresses which they impose on lubricating oils.
It was necessary to establish reproducible test conditions that were sufficiently severe so that the properties of the oils could be evaluated in a reasonable period of time, and yet such that the test conditions should not be so severe as to impose unreasonable demands on the lubricating oil.
This paper deals with the results obtained from the participating laboratories and the correlation of these tests with performance in service.
The test procedures recommended in this paper have been issued in ASTM standard form, for information.

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