Does the use of ethanol-blended fuel cause a decrease in fuel mileage?
There are many variables that contribute to fuel mileage, such as the season, the weather, and traffic conditions, that only an average miles per gallon can be determined. Current information derived from controlled environmental testing suggests that fuel injected vehicles may experience a decrease in mileage by approximately 2%. A carbureted vehicle that averages 30 MPG on the highway might average 29.4 MPG using ethanol-blended fuel; a small price to pay for a cleaner environment.
