Bob Teixeira decided it was time to take a stand against U.S. dependence on foreign oil.

So last fall the Charlotte, North Carolina, musician and guitar instructor spent $1,200 to convert his 1981 diesel Mercedes to run on vegetable oil. He bought soybean oil in 5-gallon jugs at Costco, spending about 30 percent more than diesel would cost.

His reward, from a state that heavily promotes alternative fuels: a $1,000 fine last month for not paying motor fuel taxes. He has been told to expect another $1,000 fine from the federal government. newsobserver.com