Higher fuel prices hit liquid waste haulers right where it hurts — on the bottom line. They’re also finding it increasingly difficult to dispose of materials such as waste oil from frying grease.Fergus Power Products tackles both issues with the SSI-250 Biodiesel Processor, which converts used fryer grease — or even virgin oil — into diesel fuel for about $1 cheaper per gallon than the cost of commercial fuel (under current prices).“You can make biodiesel fuel for $2 to $2.50 a gallon, depending on whether you use virgin oil or used oil, your local electricity rates and other factors,” explains














