Patent ID: 8852299

Claim:
A method for combusting an organometallic compound in an automotive engine comprising; (a) providing a fuel composition made by introducing into a fuel a synergistic combination of ingredients comprising a secondary organometallic compound and methylcyclopentadienyl manganese tricarbonyl (“MMT”), the fuel composition having a manganese treat rate ranging from about 2 mg Mn/L of fuel to about 16 mg Mn/L of fuel; and (b) causing the fuel from (a) to be combusted in the engine, wherein the secondary organometallic compound and methylcyclopentadienyl manganese tricarbonyl are combined at a weight ratio of secondary organometallic compound to MMT ranging from about 5:95 to about 15:85 if the manganese treat rate ranges from about 2 mg Mn/L of fuel to 8 mg Mn/L of fuel, and further wherein the secondary organometallic compound and methylcyclopentadienyl manganese tricarbonyl are combined at a weight ratio of secondary organometallic compound to MMT ranging from about 5:95 to about 10:90 if the manganese treat rate ranges from greater than 8 mg Mn/L of fuel to about 16 mg Mn/L of fuel; wherein the fuel is selected from the group consisting of kerosene, low sulfur motor fuels, synthetic fuels, Fischer-Tropsch fuels, biomass to liquids (BTL) fuels, coal to liquids (CTL) fuels, gas to liquids (GTL) fuels, liquid petroleum gas, fuels derived from coal, genetically engineered biofuels, natural gas, propane, butane, unleaded motor gasolines, and reformulated gasolines, wherein the secondary organometallic compound is cyclopentadienyl manganese tricarbonyl.