Engine Oil Viscosity Classifications Past Present And Future
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Author | : ML. McMillan |
Publisher | : |
Total Pages | : 11 |
Release | : 1977 |
Genre | : Lubricating oils |
ISBN | : |
An extensive effort is under way to revise the SAE Engine Oil Viscosity Classification System to reflect user needs more realistically. To understand how the present system evolved, the history of the classification is traced, from the original version first published in 1911 to the present 1976 version. Reasons for both high- and low-temperature viscosity grades, multigrading, and footnotes to the viscosity table are discussed, as well as other classification systems which have been discarded over the years.
Author | : Ross M. Stewart |
Publisher | : ASTM International |
Total Pages | : 112 |
Release | : 1977 |
Genre | : Automobiles |
ISBN | : |
Author | : |
Publisher | : ASTM International |
Total Pages | : 116 |
Release | : 1978 |
Genre | : Automobiles |
ISBN | : |
Author | : |
Publisher | : ASTM International |
Total Pages | : 120 |
Release | : 1977 |
Genre | : Automobiles |
ISBN | : |
Author | : Carl W. Georgi |
Publisher | : |
Total Pages | : 536 |
Release | : 1950 |
Genre | : Transportation |
ISBN | : |
Author | : Fuels and Lubricants TC 1 Engine Lubrication |
Publisher | : |
Total Pages | : 0 |
Release | : 1986 |
Genre | : |
ISBN | : |
This SAE Standard defines the limits for a classification of engine lubricating oils in rheological terms only. Other oil characteristics are not considered or included.
Author | : Wilfried J. Bartz |
Publisher | : Routledge |
Total Pages | : 545 |
Release | : 2019-03-04 |
Genre | : Science |
ISBN | : 1351451154 |
Discusses all the major aspects of automotive and engine lubrication - presenting state-of-the-art advances in the field from both research and industrial perspectives. This book should be of interest to mechanical, lubrication and automotive engineers, automotive and machinery designers as well as undergraduate and graduate students in these fields.
Author | : James A. Spearot |
Publisher | : ASTM International |
Total Pages | : 109 |
Release | : 1989 |
Genre | : Automobiles |
ISBN | : 0803112807 |
Author | : JA. Spearot |
Publisher | : |
Total Pages | : 21 |
Release | : 1992 |
Genre | : Automobiles |
ISBN | : |
The evolution of low-temperature viscosity requirements in the Engine Oil Viscosity Classification, SAE J300, began in 1923 with the introduction of simple limits on the pour point of selected viscosity grades. Since then, low-temperature requirements have evolved into a complex specification system that includes a separate designation (i.e., the "W-grades"), laboratory "cranking" and "pumping" simulators, and complex cooling cycles to which an oil must be subjected prior to measurement. These requirements have been incorporated into SAE J300 with the objective of improving its ability to specify the oil properties necessary for good engine starting and operation at low-temperatures. The current lack of field problems related to low-temperature operation of both light- and heavy-duty vehicles provides one indication of the success with which SAE J300 meets this objective. However, the last decade has witnessed significant changes in engine design to meet more stringent emissions and fuel economy regulations. For this reason, it is time for the industry to re-evaluate the low-temperature viscosity specifications in J300 to determine if they represent the optimum values needed for modern engine designs.
Author | : R. M Stewart |
Publisher | : ASTM International |
Total Pages | : 116 |
Release | : 1977 |
Genre | : |
ISBN | : 9780803105508 |