SYMPOSIA PAPER Published: 01 January 2012
STP152120120004

Polyalkylene Glycols as Next Generation Engine Oils

Source

Some of the properties intrinsically present in the backbone of polyalkylene glycols (PAGs), which have nowadays attracted the automotive original equipment manufacturers (OEMs), are presented, such as bio-no-tox properties, heat capacity, extended drains, low friction, low AlSi-liner wear, fuel economy, and very high viscosity indices, and are achieved with metal-, ash-, and polymer-free formulations, which guarantee no adverse contamination of the lambda sensor and the active centers of the catalyzer as well as not to increase the exhaust back pressure of the particulate filter through ash deposits. This paper illuminates the latest results from OEM's engine bench and road testing supporting the following functional benefits: (a) bio-no-tox, (b) improvements of fuel economy, even when compared with latest hydrocarbon-based prototype oils, (c) reduced wear, (d) reduced engine friction, (e) extended drains, (f) suited for bio-fuels, (g) no adverse effects on after-treatment devices through ash-, metal-, and polymer-free formulations, etc.

Author Information

Woydt, Mathias
BAM Federal Institute for Materials Research and Testing, Berlin, DE
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Details
Developed by Committee: D02
Pages: 25–46
DOI: 10.1520/STP152120120004
ISBN-EB: 978-0-8031-9011-5
ISBN-13: 978-0-8031-7507-5