The arguments of enemies are likewise compelling. Suppliers explain that the much lower energy content of these fuel blends eventually translates right into even more energy use and also higher quotes for the customer. The more recent flex-fuel automobiles, which use a blend of 85 percent ethanol and also 15 percent fuel, really have a much lower gas mileage compared to their traditional counterparts. A second disagreement is that older engines (those made before 2001) are not approved for the newer blends and could experience problems. Finally, there is an ongoing discussion about whether land that can be made use of for growing meals crops should, as an alternative, be used to produce plants for fuel.
Over the last few years, there has been a growing conflict over the accepted quantity of ethanol in gasoline; trying to balance costs, environmental issues, and also efficiency has actually made this a rather overwhelming job. The lawful restriction for gasoline-powered engines is 10 percent; some manufacturers of this item remain in the process of obtaining a waiver to boost the allowable quantity to 15 percent. This is where the dispute between manufacturers of engines and also manufacturers of this renewable energy source is the sharpest.