Mixing beer with driving is usually not a good idea, but throw in a political convention and you may be on to something. In an effort to green the upcoming Democratic National Convention, the Democratic party has announced that the official DNC vehicles will use an ethanol-gasoline fuel blend made from waste beer! Denver-based Molson Coors Brewing Company will be filling the tanks of the 400 GM flex fuel vehicles in the DNC fleet which will transport officials, politicians, delegates, staff and media around Denver for the August 25th event.Molson Coors Brewing Company is donating fuel made mostly from their beer waste – beer which is spilled during packaging or not fit for consumption. It is not a new process for the brewery, in fact, they have been turning beer into fuel since 1996. When beer produced at the factory does not meet their requirements, it is sent to be distilled into 200 proof fuel-grade ethanol. It is then mixed with 15 percent ethanol and sold as E85, and it is this fuel which will power the fleet of GM flex-fuel vehicles that will be used at the convention.