E15 returns

Some 30 Iowa gas stations last week resumed offering registered E15 ethanol blends to owners of vehicles made after 2001, according to the Iowa Renewable Fuels Association (IRFA).

E15 is approved by the U.S. Environmental Protection Agency (EPA) for use in all 2001 and newer passenger vehicles, as well as flex-fuel vehicles (FFVs).

However, retailers had to temporarily stop offering E15 to ...