Lubricating composition to prevent corrosion and/or tribocorrosion of metallic parts in an engine

Abstract

A lubricant composition including: from 70 to 99.99% of at least one base oil and from 0.01 to 30% of at least one alcohol ethoxylated phosphate ester compound of formula (I): wherein R is a linear or branched alkyl group having from 10 to 14 carbon atoms, m is an integer from 1 to 3, preferably from 1 to 2, n is an integer superior or equal to 6. Also, the use of the compound of formula (I) to prevent and/or reduce and/or limit and/or delay corrosion and/or tribocorrosion of the metal parts of a combustion engine.

Dependencies are inferred from the claim text.