Infiniti Fuel Economy

EPA publishes fuel-economy figures for 41 Infiniti model years in our index, spanning 7 models from 2015 to 2025. Across those, combined economy averages 23.6 MPG.

The most efficient is the 2024 Infiniti Qx55 at 27 MPG combined; the least is the 2019 Infiniti Q70 at 19 MPG — a spread of 8 MPG across the range. At 15,000 miles a year that gap is worth roughly $2,056 a year in fuel.

Fuel types represented: premium gasoline, regular gasoline. EPA figures come from a standardized test cycle, so they are comparable between vehicles but will not match what any individual driver sees.