EPA to allow the sale of E15 fuel blend to lower gas prices

The U.S. Environmental Protection Agency announced Wednesday it will temporarily allow widespread sales of E15, a higher ethanol gas blend, in an effort to reduce consumer fuel prices that have escalated since the outbreak of the Iran war.

The summer waiver lifts the seasonal prohibition on E15 sales, which had been restricted during warm weather months due to concerns over increased smog formation. Agriculture Secretary Brooke Rollins praised the decision, stating, “President Trump is unleashing American Energy Dominance, and today’s action will directly lower prices at the pump and gives a clear demand signal to our domestic biofuels producers.”

E15, which contains 15% ethanol compared to the standard 10% found in most gasoline, is already permitted year-round in several Midwestern states including Iowa, Illinois, Minnesota, Nebraska, Missouri, Wisconsin, and most of South Dakota, according to the Renewable Fuels Association. The blend is also legal in metropolitan areas that require reformulated gasoline for cleaner air quality.

The move has garnered bipartisan support. Democratic Representative Sharice Davids of Kansas has requested and received emergency waivers for E15 for several years under administrations of both parties. Similarly, Minnesota Senator Amy Klobuchar recently urged the Trump administration to take this “no-cost, immediate step” to help mitigate rising fuel costs amid the ongoing conflict.

However, experts question whether this action will significantly impact gas prices nationwide. Kenneth Gillingham, a professor at the Yale School of the Environment, points out that E15 isn’t universally available, with many regions lacking the necessary infrastructure or sufficient ethanol supply to expand its use.

There are also concerns about potential downsides to the policy. Gillingham warns that the higher ethanol content in E15 can be corrosive to engines, particularly in older vehicles, boats, and all-terrain vehicles. Safety issues could arise if consumers aren’t aware of these compatibility problems.

Jason Hill, a professor at the University of Minnesota who studies food and energy markets, raises another concern: diverting more corn to ethanol production means less is available for animal feed. “That means consumers could be trading lower costs at the pump for higher costs at the grocery store,” Hill explained.

“I think it’s difficult to see when the ledger’s settled, how this is a benefit for U.S. consumers,” Hill said. He suggested the announcement might be more targeted at supporting farmers struggling with increased diesel and fertilizer costs caused by the Iran war.

Beyond economic considerations, Gillingham emphasized environmental and health concerns. “There’s more likely to be ozone issues in the summer and some people will die,” he said. “It will lead to some earlier heart attacks and it will lead to some earlier respiratory issues that wouldn’t have been the case otherwise.”

Despite historical opposition to E15 expansion, the American Petroleum Institute offered support for this temporary measure. Will Hupman, a vice president at the organization, stated, “By temporarily easing summer fuel requirements, this action helps ensure American consumers continue to have access to affordable, reliable energy.”

The summer waiver for E15 has become increasingly common in recent years, with both Republicans and Democrats advocating for permanent year-round authorization to help stabilize fuel prices. As the Iran conflict continues to disrupt global energy markets, policymakers are seeking multiple approaches to shield consumers from price volatility while balancing environmental, agricultural, and economic priorities.