17 City / 22 Highway / 19 Combined MPG (improved engine efficiency).
The FJ Cruiser is highly sensitive to modifications and driving habits. Common "MPG killers" include: FJ Cruiser Gas Mileage: Tips to Improve Fuel Economy fj cruiser mpg
Official EPA estimates and real-world owner data generally fall within the following ranges: 15 City / 19 Highway / 17 Combined MPG. 17 City / 22 Highway / 19 Combined