Patent ID: 7413583

Claim:
A combination of a fuel and a lubricant for an internal combustion engine, said fuel and lubricant comprising: (a) an emulsified fuel comprising (1) water, (2) a fuel and (3) an emulsifier wherein the emulsifier comprises a C 9 -C 11 alkoxy poly (ethoxy) 8 alcohol; C 12 -C 15 alkoxy poly (isopropoxy) 22-26 alcohol; diglycerol monooleate; diglycerol monostearate; polyglycerol monooleate; polyethylene glycol soya bean oil ester; diglycerol dioleate; diglycerol distearate; polyglycerol dioleate; sorbitan monoisostearate; polyethoxy glycerol trioleate; or a mixture of two or more thereof; (b) at least one lubricant comprising an oil of lubricating viscosity and said lubricant is characterized as having an ash content below 1.0 wt % and as having at least one property selected from the group consisting of: (i) a phosphorous content of less than 0.05 wt %, (ii) a sulfur content of less than 0.5 wt %, (iii) a chlorine content of less than 100 ppm; resulting in the reduction of engine emissions selected from the group consisting of particulate matter, NOx, hydrocarbons, soot and combinations thereof.