a steady diet of corn, a staggering number of vintage vehicles in the United States are now suffering from clogged arteries. The culprit? Ethanol. The issue is straightforward. Countries around the world are supplementing their gasoline with biofuels, primarily ethanol. In the United States, ethanol is distilled from corn but cellulosic ethanol can also be distilled from switchgrass, sugarcane, wood chips and other agricultural byproducts. Supplementing the petroleum-based fuel supply in this manner may be a well-intentioned effort to reduce oil dependency, but it is not cost- effective and results in severe consequences to your collector vehicle's engine.