| abstract |
Provided is a lubricating oil composition that is inexpensive and can reduce thin film friction and improve fuel economy. A lubricating oil composition comprising a base oil having a tetracycloparaffin content of less than about 3% by weight. Furthermore, a composition comprising a salt of thiophosphate, dithiophosphate, sulfur-containing neopentyl glycol phosphite and sulfur-containing neopentyl glycol phosphite, which are phosphorus-containing compounds containing sulfur. A composition further comprising at least one of succinimide, boronated succinimide, Mannich dispersant, functionalized olefin copolymer and poly (meth) acrylate copolymer as a dispersant. [Selection figure] None |