Gas powered tractors can get free ethanol blended fuel from the Nebraska Ethanol Board at an antique tractor show this weekend.

The Nebraska Ethanol Board is offering three gallons of free E10 to the first 25 registered gas powered tractors at the University of Nebraska-Lincoln Larsen Tractor Museum’s open house Saturday, June 4th from 10 am to 2 pm. Registered entrants can pick up their coupon for three free gallons of E10 from the Nebraska Ethanol Board at the 1920 Model T Ford on display at the Museum.

The promotion calls attention to the fact that many older vehicles, including the Model-T and several antique tractors, were originally designed to run on ethanol fuels.