SYMPOSIA PAPER Published: 01 January 1978
STP46072S

Engine Pumpability and Crankability Tests on Commercial “W”Graded Engine Oils Compared to Bench Test Results

Source

This paper summarizes the correlations obtained between Cold Cranking Simulator viscosities and gasoline and diesel engine cranking data on 17 commercial engine oils. These engine oils include the new synthetic 5W/20 oils. The ability of an oil pumpability bench test to predict the pumpability properties of these 17 oils in a gasoline engine is also presented. The Cold Cranking Simulator Viscosities measured at temperatures from -40°F (-40°C) to 32°F (0°C) were studied to determine the necessity of measuring CCS viscosities of each “W” graded oil at its minimum expected use temperature.

Author Information

Stewart, Ross, M.
Gulf Res. & Dev. Co.
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Developed by Committee: D02
Pages: 1–14
DOI: 10.1520/STP46072S
ISBN-EB: 978-0-8031-6761-2
ISBN-13: 978-0-8031-6697-4