Good evening, I'm Dion Cheney.And I'm Nicole Winters.Thanks for jShortly after Minnesota required all diesel fuel sold in the state to contain two percent biodiesel, some problems arose.As it turned out, some batches of the new fuel couldn't withstand the cold, putting the program on hold, and bringing about changes in the industry.News 12's Ryan Gustafson has more.The smoking gun that almost put a stop to the state's biodiesel program, turned out to be a rather common component in vegetable oil, glycerin.What is sometimes used as a sweetener was clogging up fuel filters in diesel engines across the state. Leading to extra regulations in biodiesel, among other improvements.Mike Youngerberg says, "The people doing blending have also tightened the requirements for the pure biodiesel that comes into their facilities for blending so the industry has moved way ahead on quality to assure operability in these kinds of conditions."Those improvements will keep the state on pace with its lofty goals, including an increase to five percent biodiesel in May, 10 percent in 2012, and in 2015, all diesel sold in Minnesota will be 20 percent biodiesel.Mike Youngerberg says, "As part of that they have initiated technical cold weather committees that all the experts from the petroleum industry, biodiesel industry working closely to assure that operability is maintained when we move to those higher levels."All new technologies have some bumps in the road, and after getting some of theirs out of the way, the industry looks forward to a future powered by a tiny bean.Mike Youngerberg says, "Minnesota, while we've always moved toward being a leader in renewable fuels, we're moving into being a leader to make sure the product that reaches the marketplace has quality."In Mankato, Ryan Gustafson, News 12.