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.
Check Your Owner's Manual. The owner's manual usually specifies which fuels can be used in your vehicle. If you don't have a manual, it may be available on the manufacturer's website. Badges with terms such as E85, Flex-Fuel, or FFV may indicate that your vehicle can use E85.