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.
Flexible Fuel Vehicles (FFVs) are designed to run on a certain blend of the Ethanol in with unleaded gasoline with concentrations of the Ethanol as high as 85 percent, thus giving us the E85 derivative.