SYMPOSIA PAPER Published: 01 January 1977

The Relationship Between Oil Viscosity and Engine Performance-A Literature Search


This paper summarizes the published information on the relationship between oil viscosity and engine performance that may be of use in developing a new engine oil viscosity classification system. The specific engine performance factors and associated variables considered are wear, oil consumption, fuel economy, hot starting, cold starting, low temperature pumpability, noise, and shear stability.

Author Information

Stewart, RM
Selby, TW
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Developed by Committee: D02
Pages: 1–19
DOI: 10.1520/STP34802S
ISBN-EB: 978-0-8031-4694-5
ISBN-13: 978-0-8031-0549-2