Drivers could soon see some relief at the gas pump thanks to a temporary change allowing wider sales of gasoline blended with more ethanol.
Federal officials recently approved expanded summertime sales of E15 gasoline — a fuel blend containing 15 percent ethanol instead of the standard 10 percent found in most regular gasoline. Supporters say the move could help lower fuel prices as Americans continue dealing with higher costs tied to global oil market instability.
The Environmental Protection Agency issued the emergency waiver earlier this spring, allowing stations to continue selling E15 through the summer months. Typically, the higher-ethanol blend faces seasonal restrictions because of air quality concerns in warmer weather.
According to fuel industry groups and analysts, E15 often sells anywhere from 15 to 40 cents cheaper per gallon than traditional E10 gasoline.
The change comes as gas prices have climbed sharply in recent months due to rising crude oil prices connected to tensions and conflict involving Iran and disruptions to global oil shipments. Tennessee gas prices earlier this year jumped more than 40 cents in a single week as crude oil surged.
While many newer vehicles can safely use E15 fuel, experts say drivers should still check their owner’s manual before filling up.
Automotive experts say most vehicles manufactured within the last 20 to 25 years are designed to handle higher ethanol blends without issue. However, older vehicles, boats, lawn equipment, and small engines may experience problems because ethanol can damage older rubber fuel system components over time.
There is also some debate about whether the lower price actually saves drivers money in the long run. Experts note ethanol contains less energy than traditional gasoline, meaning vehicles may experience slightly lower fuel economy when using E15.
Lawmakers in Washington are also debating legislation that would allow year-round nationwide sales of E15 gasoline permanently. The U.S. House recently passed a bill supporting expanded E15 sales, though the proposal still faces hurdles in the Senate.
