# The 4-Gallon Minimum Fuel Rule Explained: Which Fuel Does It Apply To? - CarScoops

> The 4-Gallon Minimum Fuel Rule Explained: Which Fuel Does It Apply To? If you drive a gas-powered car built within the last 25 years or so, there's a very good chance it'll support E10 and E15 fuels, which blend ethanol…

- **Source:** [Carscoops](https://www.carscoops.com/2285882/4-gallon-minimum-fuel-rule-explained/?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=6acea2478a70424d604290a3)
- **Published:** 2026-10-13
- **Category:** Cars
- **Tags:** #fuel #minimum #apply #does #explained #gallon #rule #carscoops
- **Canonical:** http://localhost:4321/a/6acea2478a70424d604290a3

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_GearOpen's distilled summary. The full original article is published at Carscoops (source link above); GearOpen does not republish the source's full text._