Diluted Gas To Be Sold More—And 4-Gallon Minimum Laws May Not Apply
Summary
House Republicans are working to allow the sale of E15 gas all year across the U.S. E15 is a cheaper gasoline mix with 15% ethanol and 85% regular gasoline, approved for many vehicles. A little-known rule requiring a 4-gallon minimum purchase only applies at some gas stations and mainly affects E10 fuel purchases, not E15.Key Facts
- E15 gas contains 15% ethanol and 85% gasoline and is usually cheaper than standard fuel.
- It is approved for cars from model year 2001 and newer.
- Current law limits E15 sales nationwide during summer due to air-quality rules, but new legislation aims to allow year-round sales.
- E15 is sold at about 3% of U.S. gas stations, so it is not yet widely available.
- The "4-gallon minimum" rule mainly applies to E10 fuel bought from pumps that share the hose with E15 to avoid contamination.
- This rule does not apply to drivers buying E15 itself; they can buy any amount.
- The EPA says fewer than 30 stations enforce the 4-gallon minimum rule, so it affects very few drivers.
- Expanding E15 availability could help lower gas prices and increase domestic biofuel use, but confusion about pump rules may continue.
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