The arguments of challengers are also compelling. Manufacturers explain that the lesser power content of these gas mixes ultimately translates right into even more gas usage and greater costs for the consumer. The more recent flex-fuel motor vehicles, which use a mix of 85 percent ethanol as well as 15 percent gas, actually have a lower gas mileage than their traditional counterparts. A second disagreement is that older engines (those made prior to 2001) are not approved for the newer blends and could suffer problems. Lastly, there is an ongoing discussion about whether land that could be utilized for increasing meals crops should, rather, be made use of to create crops for energy.
In the last few years, there has been a growing controversy over the accepted amount of ethanol in fuel; attempting to balance expenses, ecological issues, and efficiency has actually made this a somewhat daunting task. The legal services limit for gasoline-powered engines is 10 percent; some producers of this item remain in the process of acquiring a waiver to raise the acceptable amount to 15 percent. This is where the dispute between manufacturers of engines and manufacturers of this sustainable energy source is the sharpest.