ive got a better idea.

next time you go to get a car, get a truck with a deisel engine...

all deisel powered engines can use hempseed oil for fuel, with no alterations to any of its parts. (the first deisel engine ran on hempseed oil, and all the rest are built the same way)

then, get a license to grow hemp for industrial uses, extract your oil, and then you got free gas. and you have a way to make money...