Exxon Chemical Patents, Inc.

Infineum International Limited

Infineum USA LP

Brid Dilworth

Rinaldo Caprotti

Brian William Davies

Dennis G Peiffer

Robert Dryden Tack

Carlo S Fava

Philip E Collier

Dale Robert Carroll

Michele Anne Thornhill

Rinaldo Capprotti

This invention relates to fuel oil, especially middle distillate fuel oil, compositions comprising middle distillate fuel oil and incorporated therein an incorporated therein an additive composition comprising (a) at least one fuel-soluble or fuel-dispersible neutral alkaline earth metal compound and/or at least one fuel-soluble or fuel-dispersible neutral alkali metal compound, and (b) at least one fuel-soluble or fuel-dispersible transition metal compound, characterized in that the fuel oil composition contains at most 0.05 mass % of sulfur, the total metal content derived from (a) and (b) in the fuel oil composition is at most 50 ppm by mass, and the mass proportion of (a) to (b), based on metal content, is in the range of from 1:99 to 99:1.

Fuel oil compositions

A copolymer comprising units derivable from (A) one or more olefins of defined chain length; and (B) one or more ethylenically unsaturated compounds different from (A). The copolymers are useful as cold flow improvers in fuel oils.

Fuel oil additives and compositions

The compatibility with nitrile ester seals of lubricating compositions containing active sulphur-containing additives may be enhanced bt treating the additives, or concentrates containing them, or the composition themselves, with one or more olefinically unsaturated compounds selected from:

Oleaginous compositions

Additives and fuel oil compositions

Fuel oil compositions with improved lubricity properties

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Oxford, United Kingdom

Brid Dilworth