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.
These vehicles can run on 100 percent ethanol, 25/75 percent ethanol/gasoline blend (the 25 percent minimum ethanol mandate) or any combination of the two. Today more than 70 percent of the new cars sold in Brazil are flex-fuel as shown in Figure 1. Consumers have 49 models to choose from.