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WVO Vegetable Fuel SystemsWhy Waste Vegetable Oil? Most diesel car engines are suitable for the use of waste vegetable oil (WVO) with appropriate oil purification and suitable fuel system modifications. Principally, the viscosity and surface tension of the WVO must be reduced by preheating it, typically by using waste heat from the engine or electricity, otherwise poor atomization, incomplete combustion and carbonization may result. Use of used vegetable oil as a direct fuel competes with some other uses of the commodity, which h...
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