Why is it illegal to convert your car to run on vegetable oil?

*Technically* - because of the Clean Air Act, the EPA requires all fuels to undergo testing. No one has officially registered vegetable oil as a fuel, so it doesn't get tested. For that reason, legally/technically speaking, according to the federal government, it's illegal (the fuel itself, not the conversion), and theoretically you could get fined.





However, the EPA isn't monitoring it. I doubt anyone has ever been fined. Especially when it does not increase the emissions.Why is it illegal to convert your car to run on vegetable oil?
some states its illegal to do if you don't pay taxes on it, part of the taxes in gas is used for maintenance of the roads , so when you use veg oil you don't pay taxes for the wear and tear you put on the road, also its mostly that big oil co. have politicians in their pocket and get laws pasted so people don't cut into their huge profits.Why is it illegal to convert your car to run on vegetable oil?
It is not illegal in IL, but initial cost may prohibit use. You need to get filters and pumps, storage barrels, and a steady supply of oil. Besides you will not get very good mileage or power out of it. Bio-diesel sucks!
It depends where you live. Its usually more expensive than illegal to make that conversion.
It is not illegal in Ohio, where are you located?
idk maybe in some state it illegal.
its not..