2017 Mazda 3 5-Door (2.5L 4-cyl, Manual 6-spd) MPG & Specs
Quick answer
The 2017 Mazda 3 5-Door gets an EPA-estimated 25/33 MPG (city/highway) and 28 MPG combined, with an estimated $2,200/year fuel cost and 319 g/mi CO₂. Engine: 2.5 L 4-cyl.
The 2017 Mazda 3 5-Door with the 2.5-liter 4-cylinder regular gasoline engine returns an EPA-estimated 25 MPG in the city and 33 MPG on the highway, for a combined 28 MPG. This page summarizes the official EPA fuel-economy and emissions data for this configuration.
| Engine | 2.5 L 4-cyl |
| Transmission | Manual 6-spd |
| Drive | Front-Wheel Drive |
| Fuel type | Regular Gasoline |
| Vehicle class | Midsize Cars |
| MPG — city | 25 |
| MPG — highway | 33 |
| MPG — combined | 28 |
| Annual fuel cost* | $2,200 |
| CO₂ tailpipe | 319 g/mi |
| EPA GHG score | 6/10 |
How efficient is it?
With a combined 28 MPG, the 2017 Mazda 3 5-Door sits in the good range for fuel economy. That is about average for its class (Midsize Cars, 26 MPG average).
Fuel economy and running costs
At about $2,200 per year in fuel (EPA estimate, 15,000 mi/yr), fuel is a major part of the cost of owning the 2017 Mazda 3 5-Door. Over five years that is roughly $11,000 at today's prices — before insurance, maintenance, and depreciation.
Emissions
The 2017 Mazda 3 5-Door emits approximately 319 grams of CO₂ per mile at the tailpipe, earning an EPA greenhouse-gas score of 6 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.