Abstract:
A method of reducing spark plug fouling in spark ignition engines fueled with organomanganese containing gasoline is described. The method features the use in gasoline of a spark plug anti-fouling amount of an organic molybdenum compound. Molybdenum naphthenate is an example of a useful anti-foulant compound.
Abstract:
A synergistic mixture comprising zinc dialkyldithiophosphate and zinc dialkylphenoxyethyldithiophosphate, said mixture provides improved oxidation resistance, nitration inhibition and antiwear properties to a wide variety of organic oil substrates.
Abstract:
A method of reducing spark plug fouling in spark ignition engines fueled with organomanganese containing gasoline is described. The method features the use in gasoline of a spark plug antifouling amount of an organic molybdenum compound. Molybdenum naphthenate is an example of a useful antifoulant compound.
Abstract:
A GASOLINE COMPOSITION CONSISTING ESSENTIALLY OF A HYDROCARBON GASOLINE, AN ANTI-KNOCK QUANTITY OF A TETRALOWER-ALKYL LEAD COMPOUND, AND A GASOLINE-SOLUBLE VANADIUM OR CHROMIUM SALT OF A PHOSPHORUS COMPOUND HAVING THE FORMULA
R-O-P(=O)(-O-R'')-OH OR R''-O-P(=S)(-O-R)-SH
WHEREIN R IS A HYDROCARBON RADICAL OF UP TO 30 CARBON ATOMS, R'' IS SELECTED FROM THE GROUP CONSISTILNG OF HYDROGEN AND R, S IS SULFUR AND O IS OXYGEN. THE AMOUNT OF METAL SALT ADDED IS SUFFICIENT TO PROVIDE ABOUT 0.002 TO 0.8 MILLIGRAM ATOMS, PREFERABLY ABOUT 0.025 TO 0.3 MILLIGRAM ATOMS, OF THE SELECTED METAL PER GALLON OF GASOLINE. A GASOLINE SOLUBLE NON-METALLIC AUXILIARY PHOSPHORUS COMPOUND CAN BE ADDED TO THE COMPOSITION TO PROVIDE ADDITIONAL BENEFICIAL EFFECTS.