2012 Mazda 3 (2L 4-cyl, Manual 5-spd) MPG & Specs
Quick answer
The 2012 Mazda 3 gets an EPA-estimated 25/32 MPG (city/highway) and 28 MPG combined, with an estimated $2,200/year fuel cost and 317.393 g/mi CO₂. Engine: 2 L 4-cyl.
The 2012 Mazda 3 with the 2-liter 4-cylinder regular gasoline engine returns an EPA-estimated 25 MPG in the city and 32 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 L 4-cyl |
| Transmission | Manual 5-spd |
| Drive | Front-Wheel Drive |
| Fuel type | Regular Gasoline |
| Vehicle class | Compact Cars |
| MPG — city | 25 |
| MPG — highway | 32 |
| MPG — combined | 28 |
| Annual fuel cost* | $2,200 |
| CO₂ tailpipe | 317.393 g/mi |
| EPA GHG score | — |
How efficient is it?
With a combined 28 MPG, the 2012 Mazda 3 sits in the good range for fuel economy. That is about average for its class (Compact Cars, 25 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 2012 Mazda 3. Over five years that is roughly $11,000 at today's prices — before insurance, maintenance, and depreciation.
Emissions
The 2012 Mazda 3 emits approximately 317.393 grams of CO₂ per mile at the tailpipe. 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.