1. Do you know that gasoline is remplaced actually in the USA for the etanol.

Ethanol is a chemical compound that can be used as fuel, either alone or mixed with gasoline in varying quantities and its use was extended mainly to replace consumption of petroleum products. Fuel resulting from the mixture of ethanol and gasoline known as gasohol and gasohol. Two common blends are E10 and E85, ethanol content of 10% and 85% respectively.