Castrol Limited

Sander Gaemers

Martin E Carrera

John William Shabaker

John Philip Davies

Marcel Jerusalem

Bryan Rabenau

Oliver Williams

A method for assessing the condition of an oil using a portable computer coupled to a camera comprises: separating wear particles from a sample of the oil; capturing an image of the separated wear particles using the camera; and analysing the image and generating information about the condition of the oil using the portable computer. The method may be used for tracking the condition of an oil in a machine over a period of time. The methods are particularly useful for assessing the condition of an industrial oil e.g. a lubricating oil that has been used to lubricate moving parts in a machine.

Oil analysis

A lubricating composition comprising a base oil of lubricating viscosity and one or more lubricant additives, wherein the base oil comprises or consists of a base stock which comprises or consists of at least one isoprenoid compound comprising: (i) one or two oxygen-containing moieties independently selected from ether and ester moieties; (ii) a first acyclic isoprenoid moiety containing 1 to 5 isoprenyl units; and (iii) optionally, a second acyclic isoprenoid moiety containing 1 to 5 isoprenyl units with the proviso that at least one isoprenoid moiety contains 3 to 5 isoprenyl units where the isoprenoid compound contains a single ether moiety.

Lubricating compositions containing isoprene based components

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London, United Kingdom

Sander Gaemers