Gas Type by Car: Regular, Premium, Diesel or E85 / Ford / E150 VanFord E150 Van Gas type by year YearGas type2014Regular (flex-fuel E85 engine available)2013Regular (flex-fuel E85 engine available)2012Regular (flex-fuel E85 engine available)2011Regular (flex-fuel E85 engine available) Source: U.S. EPA / DOE fuel economy data (fueleconomy.gov).