Pick a year below to open the full Infiniti M45x page for that model year. Each year page covers combined, city, and highway MPG, the trim variants the EPA rates separately, the annual fuel cost across three driving patterns, and a year-over-year comparison so you can see whether the car has improved.

Fuel economy by model year

Combined MPG, city MPG, highway MPG, and the EPA's estimated annual fuel cost for every model year of the Infiniti M45x. Click any year to see the full breakdown for that model year, including trim variants, the drivetrain, and a comparison against other vehicles in its segment.

Year Model Combined MPG City Highway Annual fuel cost
2010 2010 Infiniti M45x 16 MPG 14 MPG 20 MPG $4,300
2009 2009 Infiniti M45x 16 MPG 14 MPG 20 MPG $4,300
2008 2008 Infiniti M45x 16 MPG 14 MPG 20 MPG $4,300

How the Infiniti M45x compares against the Large Cars class

Buyers usually compare the Infiniti M45x against other cars in the same EPA class. The list below shows the most efficient cars in the Large Cars class for the 2010 model year, the latest year on this page. Each link opens the full page for that car.

Source: U.S. EPA fuel economy dataset. Annual fuel cost assumes 15,000 miles of driving per year and a 55% city, 45% highway split.