“But Biden’s plan, like other options to stall rising gas prices, isn’t likely to have a big impact if enacted. Only 2,300 US gas stations—about 1.5% of the country’s roughly 150,000 fueling stations—sell E15 gas. The remaining 98.5% of gas stations may not have the proper equipment (pdf) to safely store E15. What impact would that have? Refueling with E15 would knock about 10 cents off the average US gas price of $4.20 per gallon. Applying those savings to sales at the 1.5% of US gas carrying E15 fuel, and the average national gas price could fall by around 0.2 cents per gallon. That would, In a best-case scenario, lower the national average to about $4.19 per gallon.” — Quartz Magazine