Patent ID: 7977287

Claim:
A method to improve the fuel economy of internal combustion machines comprising: 1. producing an oil additive composition, comprising in admixture form: a) a surfactant selected from the group consisting of non-ionic, anionic, cationic, amphoteric and mixtures thereof; b) optionally, a co-surfactant selected from the group consisting of methanol, ethanol, propanol, butanol, ethylene glycol, propylene glycol, ethylene glycol n-butyl ether, dipropylene glycol methyl ether and mixtures thereof; c) optionally, kerosene; and d) water, 2. providing a crankcase oil of lubricating viscosity, 3. producing a crankcase lubricating oil composition by dosing said crankcase oil of lubricating viscosity with from about 20:1 to about 2,000:1 by weight of said oil additive such that said crankcase lubricating oil composition comprises: a) from about 145 to about 40,000 ppm by weight of said surfactant; b) from about 0 to about 13,750 ppm by weight of said co-surfactant; c) from about 0 to about 15,000 ppm by weight of said kerosene; and d) from about 50 to about 28,600 ppm by weight of said water, such that the weight ratio of said surfactant to said water is from about 8:1 to about 0.5:1, and 4. operating said internal combustion machines using said crankcase lubricating oil composition.