| 摘要 |
PROBLEM TO BE SOLVED: To provide smooth and efficient lubrication of a dual clutch transmission ("DCT"). SOLUTION: A composition comprising (a) an oil of lubricating viscosity, (b) 2,5-dimercapto-1,3,4-thiadiazole (DMTD), a derivative of DMTD or mixtures thereof, (c) a friction modifier, and (d) a dispersant are useful for lubricating a transmission having a plurality of wet clutches and a plurality of partial power transmission shafts. In the transmission, shifting of gears occurs by a process including synchronization of an engaged and a non-engaged partial transmission shaft, and engagement of the wet clutch. COPYRIGHT: (C)2010,JPO&INPIT |
