FUEL ECONOMY ENGINE OIL COMPOSITION
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United States of America Patent
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Issued Date -
Mar 26, 2015
app pub date -
Sep 17, 2014
filing date -
Sep 23, 2013
priority date (Note) -
Abandoned
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Abstract
The present invention is directed to a lubricating oil additive containing a vicinal diol and a particular detergent blend typically is low viscosity base oils whereby exhibiting improved fuel economy. In this respect, disclosed is a lubricating oil composition comprising: a major amount of base oil of lubricating viscosity; a friction modifier which is selected from the group consisting of C10-C30 alkane 1,2-diols and C10-C30 alkene 1,2-diols; an overbased alkyl alkaline earth metal hydroxybenzoate detergent having a metal ratio less than 3.0; and an overbased alkyl calcium sulfonate or an overbased alkyl calcium hydroxybenzoate having a metal ratio of 3.5 or greater.
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