The present disclosure relates to additive compositions and their use for improving the low temperature properties of motor fuels and fuels. The additive compositions include at least one modified alkylphenol-aldehyde resin and at least one filterability additive chosen from: the terpolymers of C.sub.4 to C.sub.22 alkyl (meth)acrylate, C.sub.20 to C.sub.24 alpha-olefin and maleimide N-substituted by a hydrocarbon chain having between 4 and 30 carbon atoms, the homopolymers of C.sub.1 to C.sub.40 alkyl (meth)acrylate, preferably the C.sub.8 to C.sub.24 alkyl polyacrylates, the ammonium salts of mono- or poly-carboxylic acid comprising at least one linear or branched, saturated or unsaturated hydrocarbon chain, having between 4 and 30 carbon atoms. The present disclosure also relates to compositions of motor fuels or liquid hydrocarbon fuels including such compositions.

The present disclosure relates to additive compositions and their use for improving the low temperature properties of motor fuels and fuels. The additive compositions include at least one modified alkylphenol-aldehyde resin and at least one filterability additive chosen from: the terpolymers of C.sub.4 to C.sub.22 alkyl (meth)acrylate, C.sub.20 to C.sub.24 alpha-olefin and maleimide N-substituted by a hydrocarbon chain having between 4 and 30 carbon atoms, the homopolymers of C.sub.1 to C.sub.40 alkyl (meth)acrylate, preferably the C.sub.8 to C.sub.24 alkyl polyacrylates, the ammonium salts of mono- or poly-carboxylic acid comprising at least one linear or branched, saturated or unsaturated hydrocarbon chain, having between 4 and 30 carbon atoms. The present disclosure also relates to compositions of motor fuels or liquid hydrocarbon fuels including such compositions.

This invention relates to a lubricating oil composition comprising or resulting from the admixing of: a) 50 to 99 mass % of one or more base oils; b) 0.1 to 15 mass % of one or more functionalized olefin copolymer having an Mn of from 10,000 to 35,000 g/mol; c) 0.1 to 20 mass % of one or more detergents wherein the detergent comprises at least one calcium detergent having a TBN of more than 100 mg KOH/g; at least one calcium detergent having a TBN of 100 mg KOH/g or less; and at least one magnesium detergent, where the difference in the TBN's for the Ca detergents is at least 100 mg KOH/g; d) 0.01 to 40 mass % of one or more dispersants wherein the dispersants comprise at least one borated dispersant and at least one non borated dispersant; e) 0.01 to 20 of mass % sulfurized fatty acid ester; f) 0.01 to 5 mass % of one or more amine or phenol based antioxidants; and g) 0.001 to 15 mass % of molybdenum containing compound, where the lubricating oil composition has: 1) a sulfated ash content of 0.9 mass % or less; 2) a Mack T-11 final soot %@15 cSt of 6.7% or more; 3) a total base number of 5 to 30 mg KOH/g; 4) HTCBT of copper level increase of 20 ppm or less; 5) T-13 IR peak EOT of 40 abs/cm or less; and 6) Cam wear outlet of 45 m or less.

Provided is a fuel-reducing composition for diesel internal combustion engines, which includes nanosized crushed nanomaterials and uses a lubricity improver to ensure sufficient dispersion. This allows for the cleaning of the combustion chamber and promotes complete combustion, which enhances output while reducing fuel consumption. By using the fuel-reducing composition for diesel internal combustion engines formed according to the preferred embodiment of the present invention, the size of the nanomaterials is limited, allowing for efficient cleaning of the combustion chamber without interfering with combustion. Without the use of surfactants for the dispersion of nanomaterials, a lubricity improver is employed to facilitate smooth dispersion while simultaneously protecting the combustion chamber of the engine and promoting complete combustion. Since the nanomaterials do not adhere to each other due to their size limitation and the use of the lubricity improver, combustion proceeds smoothly, leading to complete combustion and producing the desired effects.

Paraffin suppressant-nanoparticulate admixtures are added to petroleum oils, such as crude or refined oils, to obtain treated petroleum oils. The treated petroleum oils obtain a viscosity that is reduced by 5% to 50%, and pour point that is reduced by 0.1 C. to 5 C. compared to the same petroleum oil treated with the paraffin suppressant in the absence of the nanoparticulate, further where the comparison is made at a temperature between 60 C. and 4 C. The paraffin suppressant-nanoparticulate admixtures also obtain decreased fouling of surfaces by paraffin waxes present in many petroleum oils, when compared to the same petroleum oil treated with the paraffin suppressant in the absence of the nanoparticulate.

Paraffin suppressant-nanoparticulate admixtures are added to petroleum oils, such as crude or refined oils, to obtain treated petroleum oils. The treated petroleum oils obtain a viscosity that is reduced by 5% to 50%, and pour point that is reduced by 0.1 C. to 5 C. compared to the same petroleum oil treated with the paraffin suppressant in the absence of the nanoparticulate, further where the comparison is made at a temperature between 60 C. and 4 C. The paraffin suppressant-nanoparticulate admixtures also obtain decreased fouling of surfaces by paraffin waxes present in many petroleum oils, when compared to the same petroleum oil treated with the paraffin suppressant in the absence of the nanoparticulate.

A diesel fuel additive includes a cetane number improver and an at least one organometallic combustion catalyst in solution and/or at least one metal-oxide combustion catalyst in suspension.

The present invention relates to a method for homogeneous marking of petroleum hydrocarbon stored within a reservoir on a vehicle with at least one marker. The method comprises inserting a loading arm comprising a marker injection conduit having a free end being operative to dispense a pulsating, pressurised marker stream and a gas injection conduit having a free end being operative to dispense a pulsating, pressurised gas stream into a reservoir of a vehicle. The method further comprises positioning the free end of the marker injection conduit at a marker height from a lowest surface of the reservoir and the free end of the gas injection conduit at a gas height from a lowest surface of the reservoir within petroleum hydrocarbon within the reservoir, wherein the free end of the marker injection conduit is located at the marker height which is larger than the gas height.

The present invention relates to a method for homogeneous marking of petroleum hydrocarbon stored within a reservoir on a vehicle with at least one marker. The method comprises inserting a loading arm comprising a marker injection conduit having a free end being operative to dispense a pulsating, pressurised marker stream and a gas injection conduit having a free end being operative to dispense a pulsating, pressurised gas stream into a reservoir of a vehicle. The method further comprises positioning the free end of the marker injection conduit at a marker height from a lowest surface of the reservoir and the free end of the gas injection conduit at a gas height from a lowest surface of the reservoir within petroleum hydrocarbon within the reservoir, wherein the free end of the marker injection conduit is located at the marker height which is larger than the gas height.