Pour Point Depressant Robustness after Severe Use in Passenger Car Engines in the Field and in the Sequence IIIGA Engine

Selection of Pour Point Depressants for Todays Engine Oils including Aging in the Presence of Biodiesel by CEC L-105

“…In ILSAC GF-4, ASTM D4684 pumpability performance has to be met on used oil sampled after completion of the Sequence IIIGA engine test. Work by Evonik Oil Additives [12] showed that PPD could greatly assist in achieving the used oil pumpability performance requirement after both Sequence IIIGA and field taxi fleet aging. Importantly, it was also demonstrated that the PPD was not degraded by either Sequence IIIGA or taxi fleet aging.…”