The present invention provides: a compound that has a low melting point and is capable of forming a film of high hydrophobicity, and a composition containing this compound. The compound of the present invention is represented by chemical formula (1).

##STR00001##

(In the formula, R.sup.1 and R.sup.2 are each a C.sub.1-C.sub.33 aliphatic hydrocarbon group, the total number of carbons of in R.sup.1 and R.sup.2 is 14-34, X is a single bond or a C.sub.1-C.sub.5 aliphatic hydrocarbon group, and A is —O—CH.sub.2—CH(OH)—CH.sub.2OH or —O—CH(—CH.sub.2—OH).sub.2.)

Disclosed herein are improved lubricating compositions effective to prevent or reduce low speed pre-ignition in an engine, as well as to prevent or reduce corrosion of engine components. The lubricating compositions include a base oil combined with a calcium chelate complex, optionally in further combination with additional additives.

Disclosed herein are improved lubricating compositions effective to prevent or reduce low speed pre-ignition in an engine, as well as to prevent or reduce corrosion of engine components. The lubricating compositions include a base oil combined with a calcium chelate complex, optionally in further combination with additional additives.

The present invention provides: a compound that has a low melting point and is capable of forming a film of high hydrophobicity, and a composition containing this compound. The compound of the present invention is represented by chemical formula (1). ##STR00001##
(In the formula, R.sup.1 and R.sup.2 are each a C.sub.1-C.sub.33 aliphatic hydrocarbon group, the total number of carbons of in R.sup.1 and R.sup.2 is 14-34, X is a single bond or a C.sub.1-C.sub.5 aliphatic hydrocarbon group, and A is OCH.sub.2CH(OH)CH.sub.2OH or OCH(CH.sub.2OH).sub.2).

A lubricating oil composition that includes a highly paraffinic base oil, a controlled release friction modifier (CRFM) and an effective amount of detergent. The CRFM includes an ionic tetrahedral borate compound comprising a cation and a tetrahedral borate anion which includes a boron atom, the boron atom having two bidentate di-oxo ligands of C.sub.18 tartrimide. The CRFM is a high stabilizer CRFM. The detergent includes a mixed magnesium and calcium detergent system having a calcium to magnesium ratio of less than 2:1.

A lubricating oil composition for two-wheeled motor vehicles including a base oil and a metal phenate and having a coefficient of friction measured of less than 0.0900. The lubricating oil composition in which a performance required for lubricating oil for engines is satisfied, and a good shift feeling is achieved while a high coefficient of friction is kept in a wet clutch.