Abstract: An antigel composition for hydrocarbon fuels for combustion in motors, engines, turbines, and furnaces comprises:(a) a polar oxygenated long chain hydrocarbon having a defined acid number, a defined saponification number, and a defined molecular weight;(b) a low molecular weight addition polymer or copolymer, preferably of ethylene and vinyl acetate;(c) optionally, a hydrophilic conditioner, selected from the group consisting of glycols, glycol diether, and half ethers preferably a methyl half ether of a glycol; and(d) optionally, a compatibilizing agent, preferably having a solubility parameter from about 8.8 to about 11.5, more preferably an alcohol having from 4 to 13 carbon atoms.

Abstract: A non-ionic composition for dispersing sludge and causing rapid separation of water for easy removal, in residual oils, is formed from a blend of n-hexanol, diethylene glycol methyl ether and isooctyl phenyl polyethoxy ethanol. The dispersant, when used in 1:1,000-4,000 parts of dispersant to parts of oil, causes dispersion of the sludge and eliminates the need for physically removing the sludge.