Tests were conducted using two 1976 Ford Torinos in which the fuel economy using gasohol was compared with that obtained using unleaded gasoline. It was found that gasohoI gave 3% fewer miles per gallon than the unleaded gasoline under typical summer highway driving conditions in North Dakota. This difference was found to be statistically significant at the 99% level of confidence. The reduced fuel economy with gasohol appears to be directly proportional to the lower energy content of gasohol
