2018 Fiat 500 X AWD MPG & Specs — Real Fuel Cost
Quick answer
The 2018 Fiat 500 X AWD gets an EPA-estimated 21/29 MPG (city/highway) and 24 MPG combined, with an estimated $2,550/year fuel cost and 364 g/mi CO₂. Engine: 2.4 L 4-cyl.
The 2018 Fiat 500 X AWD with the 2.4-liter 4-cylinder regular gasoline engine returns an EPA-estimated 21 MPG in the city and 29 MPG on the highway, for a combined 24 MPG. This page summarizes the official EPA fuel-economy and emissions data for this configuration.
| Engine | 2.4 L 4-cyl |
| Transmission | Automatic 9-spd |
| Drive | All-Wheel Drive |
| Fuel type | Regular Gasoline |
| Vehicle class | Small Sport Utility Vehicle 4WD |
| MPG — city | 21 |
| MPG — highway | 29 |
| MPG — combined | 24 |
| Annual fuel cost* | $2,550 |
| CO₂ tailpipe | 364 g/mi |
| EPA GHG score | 5/10 |
How efficient is it?
With a combined 24 MPG, the 2018 Fiat 500 X AWD sits in the moderate range for fuel economy. That is roughly 22% thirstier than the typical Small Sport Utility Vehicle 4WD of its era (31 MPG class average) — expect higher fuel bills than class-average alternatives.
Fuel economy and running costs
At about $2,550 per year in fuel (EPA estimate, 15,000 mi/yr), fuel is a major part of the cost of owning the 2018 Fiat 500 X AWD. Over five years that is roughly $12,750 at today's prices — before insurance, maintenance, and depreciation.
Emissions
The 2018 Fiat 500 X AWD emits approximately 364 grams of CO₂ per mile at the tailpipe, earning an EPA greenhouse-gas score of 5 out of 10. Lower emissions generally track higher fuel economy.
How to read these numbers
EPA figures come from standardized laboratory test cycles and are the same estimates shown on the vehicle's window sticker. Your real-world mileage depends on driving style, conditions, fuel grade, and maintenance. Use combined MPG and annual fuel cost to compare vehicles fairly.