LUBRICATING COMPOSITION FOR USE IN DIESEL ENGINES COMPATIBLE WITH BIOFUEL
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United States of America Patent
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app pub date -
Apr 16, 2012
filing date -
Jul 23, 2007
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Abstract
A method of operating a diesel engine comprises lubricating the diesel engine with a lubricating composition and using a biofuel as fuel, wherein the lubricating composition comprises a base oil belonging to Group III or Group II of the API base oil categories, from 0.5 to 5% by mass of a phenolic anti-oxidant, and from 0.5 to 5% by mass of an amine-based anti-oxidant, the total content of the anti-oxidants being at least 2% by mass.
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