Abstract: The disclosure provides conductivity improving concentrates and methods for improving conductivity and reducing risks associated with static discharge in middle distillate fuel compositions, particularly diesel fuels. The conductivity improvement is provided by the combination of a detergent and a cold flow improver, which are preferably and advantageously pre-blended in an additive concentrate. The disclosure is particularly beneficial for ultra-low sulfur fuel compositions in that it provides a conductivity benefit without adding sulfur into the fuel composition.

Abstract: The disclosure provides conductivity improving concentrates and methods for improving conductivity and reducing risks associated with static discharge in middle distillate fuel compositions, particularly ultra-low sulfur diesel fuels. The conductivity improvement is provided in the presence of a basic nitrogen component and is sustained for an extended period, thus permitting the antistatic agent to be pre-blended with in an additive concentrate or to the fuel well in advance of the time when the improved conductivity might actually be needed, such as when the fuel is dispensed into a bulk container.

Abstract: The present disclosure provides compositions and methods for reducing deposit formation in engines combusting a fuel containing ethanol and a corrosion inhibitor. The present disclosure also provides compositions and methods for reducing deposit formation in engines combusting a fuel containing ethanol, a corrosion inhibitor, and a dispersant.

Abstract: The present disclosure relates to the use of fuel additives in duel delivery systems contacting or combusting fuels containing ethanol, such as E85. The additives improve the properties of the resulting fuel, minimize the impact of the fuel on the components of the fuel delivery system, improve the protection of the engine and the fuel delivery system, and also enhance the benefits to the consumer and to the environment of utilizing varying amounts of ethanol as a fuel in combustion engines.

Abstract: The present disclosure provides a fuel composition containing gasoline, ethanol and a volatility agent, such that the cold start performance of the gasoline/ethanol blend fuel is enhanced. Also provided is a fuel composition containing ethanol and a volatility agent and also a method for improving the cold start performance of an engine.

Abstract: The present disclosure provides a method to reduce wear and prevent deposit formation in an internal combustion engine, said method comprising combusting in said engine a fuel composition comprising gasoline, ethanol and at least one fuel additive. There is also provided a composition to improve wear protection in an internal combustion engine combusting an ethanol-containing fuel, said composition comprising gasoline, ethanol, and one or more fuel additive materials.

Abstract: The present disclosure provides compositions and methods for improving corrosion inhibition in engines combusting a fuel containing ethanol. In particular, E85 fuels are provided containing additives able to reduce, eliminate and/or prevent corrosion of engine combustion surfaces and surfaces of engine components exposed to the fuel containing ethanol.

Abstract: Fuel additives and fuel additive compositions are described comprising: (i) at least one fuel-soluble detergent/dispersant which is (a) a fuel-soluble salt, amide, imide, oxazoline and/or ester, or a mixture thereof, of a long chain aliphatic hydrocarbon-substituted dicarboxylic acid or its anhydride, (b) a long chain aliphatic hydrocarbon having a polyamine attached directly thereto, and/or (c) a Mannich condensation product formed by condensing a long chain aliphatic hydrocarbon-substituted phenol with an aldehyde, and an amine; wherein the long chain hydrocarbon group in (a), (b) and (c) is a polymer of at least one C.sub.2 to C.sub.10 monoolefin, said polymer having a number average molecular weight of at least about 300; (ii) a fuel-soluble cyclopentadienyl complex of a transition metal; and (iii) a fuel-soluble liquid carrier or additive induction aid. These compositions in use enable surprising improvements in intake valve deposit control as well as other advantages.

Abstract: The combination of a fuel-soluble succinimide detergent/dispersant, a fuel-soluble liquid carrier or induction aid therefor, and a fuel-soluble cyclopentadienyl manganese tricarbonyl compound can sharply reduce the formation or accumulation of engine deposits such as intake valve deposits in internal combustion engines. In fact, such compositions can function synergistically whereby the effectiveness of a highly effective succinimide-based deposit control additive can be improved by the addition thereto of the manganese compound, the latter not known to be a substance that reduces deposits.

Abstract: A diesel fuel composition comprising a major amount of a hydrocarbon based compression ignition fuel and a minor particulate-reducing amount of an aliphatic 1,2-diol.