Method for reducing intake valve deposits in a spark ignition internal combustion engine which is fuelled with a gasoline fuel composition, wherein the method comprises introducing into the engine an aqueous based composition, wherein the aqueous based composition comprises (i) water, (ii) from 0 vol % to 40 vol % freezing point suppression agent, (iii) from 0 vol % to 10 vol % of surfactant, and (iv) an amine compound in a blending amount of from 0 ppmw to 1000 ppmw.

A universal additive for fuel and lubricants contains C2-C4 alcohols, carbamide, boric acid, acrylic compounds, and water. The additive allows for more complete combustion of liquid and solid fuels, as well as reduced fuel consumption and fewer harmful emissions. In lubricating oil compositions, the additive reduces wear on the friction surfaces of engines, and also reduces fuel consumption.

The present disclosure relates to a method of reducing regeneration frequency of a diesel particulate filter in a vehicle combusting diesel fuel. The method includes combusting a diesel fuel in a vehicle engine having a diesel particulate filter and wherein the diesel particulate filter requires regeneration thereof. The diesel fuel has less than about 50 ppmw of sulfur and one or more select additives to reduce a measured frequency of regeneration of the diesel particulate filter.

The present disclosure relates to a method of reducing regeneration frequency of a diesel particulate filter in a vehicle combusting diesel fuel. The method includes combusting a diesel fuel in a vehicle engine having a diesel particulate filter and wherein the diesel particulate filter requires regeneration thereof. The diesel fuel has less than about 50 ppmw of sulfur and one or more select additives to reduce a measured frequency of regeneration of the diesel particulate filter.

The invention pertains to a novel additive for fuels comprising iso-propanol in an amount of from 60-70 Vol.-%, diesel and gasoline each in an amount of from 10-20 vol.-% and water in an amount of from 1-5 vol.-%. In another aspect the composition comprises Iso-propanol in an amount of from 60-70 vol.-%, lineseed oil in an amount of from 15-25 vol.-%, gasoline fuel in an amount of from 10-20 vol.-%, and water in an amount of from 1-5 vol.-%. The invention further relates to the use of the said additive in reducing carbon monoxide (CO) and unburnt hydrocarbons (HC) levels from emissions of combustion engines.

A bis-urea compound of general formula (IV):

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The compound is useful as a thermo-thickening agent in a non-polar liquid such as engine lubricating oil or thermosetting varnish. Also, a method for preparing the thermo-thickening compound. Further, a composition comprising the thermo-thickening compound and a non-polar liquid.

Method for reducing intake valve deposits in a spark ignition internal combustion engine which is fuelled with a gasoline fuel composition, wherein the method comprises introducing into the engine an aqueous based composition, wherein the aqueous based composition comprises (i) water, (ii) from 0 vol % to 40 vol % freezing point suppression agent, (iii) from 0 vol % to 10 vol % of surfactant, and (iv) an amine compound in a blending amount of from 0 ppmw to 1000 ppmw.

The invention pertains to a novel additive for fuels comprising iso-propanol in an amount of from 60-70 Vol.-%, diesel and gasoline each in an amount of from 10-20 vol.-% and water in an amount of from 1-5 vol.-%. In another aspect the composition comprises Iso-propanol in an amount of from 60-70 vol.-%, lineseed oil in an amount of from 15-25 vol.-%, gasoline fuel in an amount of from 10-20 vol.-%, and water in an amount of from 1-5 vol.-%. The invention further relates to the use of the said additive in reducing carbon monoxide (CO) and unburnt hydrocarbons (HC) levels from emissions of combustion engines.

The invention relates to the field of petroleum refining and petrochemistry, and specifically to the composition of a multi-function universal additive and to a fuel composition containing said additive and intended for use in internal combustion engines, and also in boilers and furnaces. The present fuel additive contains aliphatic alcohols, water, carbamide and acetanilide Use of the proposed multi-function universal additive in the composition of fuels provides reduced specific fuel consumption, fewer harmful impurities in exhaust and waste gases (CO, CH, soot), and reduced soot formation in the combustion zone. The present additive has dispersant properties in the composition of heavy distillate and residual fuels.

A fuel for use in internal combustion engines, wherein the fuel includes a mixture of at least one alcohol, water, urea and/or Ammonium Nitrate. The water is included in a quantity which renders the Ammonium Nitrate and/or urea dissolved in the at least one alcohol. The at least one alcohol is methanol included in a concentration having a range of 90-97 weight %. The Ammonium Nitrate is included in a concentration having a range of 0.5-10 weight %; more optionally, the Ammonium Nitrate is included in a concentration having a range of 1-5 weight %. Further, the urea is included in a concentration having a range of 1-10 weight %.