Lubricating oil compositions for improving low-speed pre-ignition

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12195695
APP PUB NO 20240376395A1
SERIAL NO

18315013

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Abstract

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The present disclosure relates to lubricating compositions and methods of lubricating a spark-ignition engine effective to improve low-speed pre-ignition (LSPI) through selection of lubricant elemental relationships rather than through the addition of supplemental fluid additives with the added benefit that the relationships herein, in some circumstances, improve the low-speed pre-ignition independent of the underlying base oil quality. The lubricating compositions herein include one or more base oils of lubricating viscosity, one or more phosphorus-containing additives providing low levels of phosphorus, a detergent system providing calcium and/or magnesium with certain relationships of the calcium sulfated ash content to the low phosphorus content.

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Patent Owner(s)

  • AFTON CHEMICAL CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Calcut, Brent Detroit, US 1 0
Engelman, Kristi Richmond, US 6 0
James, Amy M Richmond, US 3 0
Yang, Kongsheng Glen Allen, US 15 36

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