Prediction of the Low-Temperature Cranking Characteristics of Engine Oils by Use of Laboratory Viscometers 650441

The correlation of extensive engine cranking data obtained by the Coordinating Research Council (CRC) with equally extensive viscometric data obtained by ASTM has shown that the low-temperature cranking characteristics of engine oils can be predicted by two high shear viscometers, the Ferranti-Shirley and the Forced-Ball (corrected for gel viscosity). The data collected also show that the extrapolated kinematic viscosity of multigraded engine oils has little or no value in predicting the low-temperature cranking characteristics of such oils. The abilities of other viscometers to correlate with the engine cranking data are also considered.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.