Molecular Changes to Polymeric Additives Occurring During Fuel Economy Aging Tests Ethyl Petroleum Additives Incorporated

Format:

Conference/Event

Author/Creator:

Devlin, Mark T., author.

Conference Name:

International Fall Fuels & Lubricants Meeting & Exposition (1998-10-19 : San Francisco, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1998

Summary:

A Gel Permeation Chromatography-Fourier Transform Infrared (GPC-FTIR) technique is employed to monitor changes in the molecular weight distributions of polymeric oil additives caused by oil aging in vehicle and engine fuel economy tests. Before and after oil aging, the predominant high molecular weight polymers in the oil are the dispersant and viscosity index improver. That is, very few low molecular weight species are oxidized and subsequently polymerized during the fuel economy tests. Molecular changes in the dispersant and viscosity index improver are related to changes in an oil's high temperature high shear viscosity in order to determine their effect on an oil's ability to control fuel economy

Notes:

Vendor supplied data

Publisher Number:

982507

Access Restriction:

Restricted for use by site license