Development of an Improved Reciprocating Viscometer for Predicting the Low Temperature Cranking Characteristics of Engine Oils 680066

The development of an improved Reciprocating Viscometer for use in predicting low temperature cranking characteristics of engine oils is described. Correlations between full-scale engine viscosities and viscosities determined using the Reciprocating Viscometer are included along with repeatability and reproducibility data obtained at 0 F and -20 F in an ASTM round-robin evaluation. Results show that this viscometer can predict the low temperature cranking characteristics of engine oils.


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