Composition and method for preventing or reducing engine knock and pre-ignition in high compression spark ignition engines
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United States of America Patent
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Nov 10, 2020
Grant Date -
Jun 21, 2018
app pub date -
Dec 11, 2017
filing date -
Dec 19, 2016
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Abstract
A method for preventing or reducing engine knock or pre-ignition in a high compression spark ignition engine with relatively high oil consumption, lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition that contains a lubricating oil base stock comprising at least one ester including at least one group selected from the group consisting of Formula (1), Formula (2), Formula (3) and Formula (4) below or at least one ester having at least 25% of its carbons in the form of methyl groups:
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