Patent Number: 7,825,076

Title: Method of reducing particulate emissions

Abstract: The present invention relates to lubricating oils, and in particular to the use of lubricating oils with low sulphur content in combination with a low sulphur fuel to reduce particulate emissions of a diesel engine equipped with a particulate trap. Thus, there is provided the use of an engine lubricating oil having a low sulphur content in combination with a fuel having a low sulphur content, to reduce the emissions of nucleation mode particles from a diesel engine fitted with a particulate trap. There is also provided a method of reducing the number of nucleation mode particles in the emissions from a diesel engine fitted with a particulate trap, which method comprises using an engine lubricating oil having a low sulphur content in combination with a fuel having a low sulphur content.

Inventors: Hall; Diane Elsie (Shepperton, GB)

Assignee: BP Oil International Limited

International Classification: C10M 137/10 (20060101); B01D 53/56 (20060101); B01D 53/94 (20060101)

Expiration Date: 2019-11-02 0:00:00