The present invention provides a thermal management system comprising a housing having an interior space; a heat-generating component disposed within the interior space; a heat exchanger; and a working fluid liquid disposed within the interior space wherein the heat-generating component is in contact with the working fluid. The working fluid comprises a Fischer-Tropsch derived base fluid; an antioxidant and anti-static additives. The system is constructed wherein a constant cyclical flow of working fluid is maintained across the heat-generating components, on to the heat exchanger and then back to the heat-generating component.

The present invention provides a method of thermal management of a heat-generating component comprising partially immersing a heat-generating component in a working fluid and transferring the heat from the heat-generating component using the working fluid in a constant cyclical flow of working fluid across the heat-generating components, on to a heat exchanger and then back to the heat-generating component.

The present invention provides a thermal management system comprising a housing having an interior space; a heat-generating component disposed within the interior space; a heat exchanger; and a working fluid liquid disposed within the interior space wherein the heat-generating component is in contact with the working fluid. The working fluid comprises a Fischer-Tropsch derived base fluid; an antioxidant and anti-static additives. The system is constructed wherein a constant cyclical flow of working fluid is maintained across the heat-generating components, on to the heat exchanger and then back to the heat-generating component.

The present invention provides a method of thermal management of a heat-generating component comprising partially immersing a heat-generating component in a working fluid and transferring the heat from the heat-generating component using the working fluid in a constant cyclical flow of working fluid across the heat-generating components, on to a heat exchanger and then back to the heat-generating component.

The present disclosure provides a hydroxyaromatic product. The alkyl hydroxyaromatic compound having a structure given by

##STR00001##

where R is a hydroxyaromatic group, X is hydrogen or methyl group and where n is 1 or greater.

The present disclosure provides a hydroxyaromatic product. The alkyl hydroxyaromatic compound having a structure given by

##STR00001##

where R is a hydroxyaromatic group, X is hydrogen or methyl group and where n is 1 or greater.

The invention is directed to a method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine by supplying to the sump a lubricant composition which contains an oil of lubricating viscosity and an ashless dispersant. The ashless dispersant may be selected from succinimide compounds prepared from aliphatic or aromatic amines.

The invention is directed to a method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine by supplying to the sump a lubricant composition which contains an oil of lubricating viscosity and an ashless dispersant. The ashless dispersant may be selected from succinimide compounds prepared from aliphatic or aromatic amines.

The present disclosure describes lubricant compositions effective to minimize average engine sludge through selection of lubricant additives that control the total nitrogen as well as the origin of the nitrogen in the lubricant composition. In aspects, the lubricant compositions herein include at least a base oil of lubricating viscosity, a dispersant system, and at least one antioxidant.

The present disclosure describes lubricant compositions effective to minimize average engine sludge through selection of lubricant additives that control the total nitrogen as well as the origin of the nitrogen in the lubricant composition. In aspects, the lubricant compositions herein include at least a base oil of lubricating viscosity, a dispersant system, and at least one antioxidant.

The disclosed technology provides alkylphenol-containing detergent having at least one unit (a) of an alkyl-substituted phenol wherein the alkyl group is derived from oligomers of an olefin compound containing 3 to 8 carbon atoms, wherein the polyolefin-derived alkyl group comprises at least 30 mol percent of an olefin with 4 or more carbon atoms. The invention further relates to a method of lubricating a mechanical device with the lubricant composition.

The disclosed technology provides alkylphenol-containing detergent having at least one unit (a) of an alkyl-substituted phenol wherein the alkyl group is derived from oligomers of an olefin compound containing 3 to 8 carbon atoms, wherein the polyolefin-derived alkyl group comprises at least 30 mol percent of an olefin with 4 or more carbon atoms. The invention further relates to a method of lubricating a mechanical device with the lubricant composition.