Fat as Alternative Fuel?

I just heard Konop is calling for a couple vehicles for county use, to be fueled by reclaimed fat from the prisoners' kitchen at the Lucas County Jail. How, by adding a couple steam engines to said vehicles, and turning the fat into big candles to heat the boilers with? I have a better idea-order LOTS of these vehicles, gather up the multiple lumps of fat in and around city hall, city council and various county offices-and use them to PUSH the vehicles with.