fuel economy

American  

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

noun

fuel economies plural

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

Derived Forms

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

Inflected Forms

noun

• fuel economies
  plural

Example Sentences

That could eventually lead to tires that last longer, grip roads more effectively in wet conditions, and improve fuel economy at the same time.

From Science Daily • May 13, 2026

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

Q. Are you aware that keeping the flues clean is the greatest one thing that you can do in regard to fuel economy, and how often should they be cleaned?

From The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads by Anonymous