Skip to Main Content
Refining Used Lubricating Oils
book

Refining Used Lubricating Oils

by James Speight, Douglas I. Exall
April 2014
Intermediate to advanced content levelIntermediate to advanced
466 pages
17h 36m
English
CRC Press
Content preview from Refining Used Lubricating Oils
58 Refining Used Lubricating Oils
2.4.2 viscOsity index
The viscosity index is strictly an empirical number and indicates the effect of change
in temperature on viscosity. A high viscosity index indicates a small change in vis-
cosity with temperature, which also means better protection of an engine that oper-
ates under vast temperature variations. Viscosity index improvers are among the
common additives that improve the efciency of the oil. However, engine oil with
a high addition level of viscosity index improvers tends to degrade more rapidly. A
high viscosity index is due to the absence of aromatic and volatile compounds and is
also an ind ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Precious Metals for Biomedical Applications

Precious Metals for Biomedical Applications

Niklaus Baltzer, Thierry Copponnex
Dictionary of Oil, Gas, and Petrochemical Processing

Dictionary of Oil, Gas, and Petrochemical Processing

Alireza Bahadori, Chikezie Nwaoha, Malcolm William Clark

Publisher Resources

ISBN: 9781466551497