we don´t have any truck running with ethanol, just cars...an inexpensive(most w/ 1.0 engine) car, can do 8Km/litre or 18.8 miles/gallon in city. Some cars with flex fuel engines, like citroen c4 pallas, can run 5Km/litre or less. With gas only, it can run a bit more. Generally ethanol moved vehicles has a greater consumption of fuel. Good flights there.