| abstract |
The present invention prevents and / or reduces premature ignition, especially slow premature ignition, in a vehicle engine of a lubricating oil composition comprising (i) at least one dithiocarbamate compound and (ii) at least one base oil. The lubricating oil composition is used for at least one oil change interval without the addition of a new lubricating oil composition, and the content of the dithiocarbamate compound is the lubricating oil composition. With respect to use, which is less than 1% by mass with respect to the total mass of the object. |