Low Temperature Flow Properties of Engine Oils 821247

Laboratory engine pumpability studies indicate that engines known to have been involved in field failures during the winter of 1980–81 are not unduly severe. Oils having satisfactory MRV performance but poor Cycle C stable pour points can lead to pumping failures using realistic sixteen hour temperature cycles. Modified MRV tests show promise of correlation with engine performance. Commercial oils with suspect properties were still available early in the winter of 1981–82.


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