Pseudoscience describes any belief system or methodology which tries to gain legitimacy by wearing the trappings of science, but fails to abide by the rigorous methodology and standards of evidence that are the marks of true science.
1 Flex-fuel hybrid electric and flex-fuel plug-in hybrid are two types of hybrid vehicles built with a combustion engine capable of running on gasoline, E-85, or E-100 to help drive the wheels in conjunction with the electric engine or to recharge the battery pack that powers the electric engine.
Alternative fuel advocates have promoted a higher blend of ethanol, E85 (85 percent ethanol and 15 percent gasoline) for use in flex-fuel vehiclesâmodels that can operate on gasoline or E85, or any blend in between. In E85, gasoline is used to provide enough starting power for cars in cold weather.