fuel economy

American  

[fyoo-uhl-i-kahn-uh-mee] / ˈfyu əl ɪˌkɑn ə mi /

noun

plural

fuel economies

1. the efficiency with which a vehicle burns a fuel such as gasoline, usually measured or expressed in miles per gallon or number of liters per 100 kilometers.

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Other Word Forms

• fuel-economic
  adjective
• fuel-economical
  adjective
• fuel-economy
  adjective

Example Sentences

Coupled with smaller, more efficient engines, the aluminum F-150 delivered between 5% and 29% better fuel economy than the previous model.

From The Wall Street Journal • May 4, 2026

If prices remain elevated through the fall, however, many will look at the situation and re-evaluate the type of car or truck they drive with an eye toward better fuel economy.

From MarketWatch • Apr. 29, 2026

The state is looking at a $216.4 billion revenue shortfall over the next decade due to increasing fuel economy and electric vehicles.

From Los Angeles Times • Apr. 29, 2026

The EPA fuel economy figure of 12 mpg, combined, hilariously overstates mileage in my real-world driving.

From The Wall Street Journal • Apr. 18, 2026

No other has such bearing upon precisely those qualities of aerodynamic efficiency, fuel economy, and reliability of airplane and powerplant that most affect commercial usefulness.

From The First Airplane Diesel Engine: Packard Model DR-980 of 1928 by Meyer, Robert B.