Real MPG: Mazda 3 (2019 on) 2.0 SKYACTIV-G 122
                
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                            Official MPG(NEDC)
                                    51.4
                                
                                Official MPG(WLTP)
44.0–55.0                            
                            Real MPG
                        
                                50.5
                            
                            Real MPGAverage
                                    98%
                                
                                of Official MPG(WLTP)
More engines available for this model:
| Engine | Official MPG (NEDC) | Official MPG (WLTP) | Real MPG Avg. | Real MPG % | |
| 1.8 SKYACTIV D | - | 48.9 mpg | - | -* | |
| 1.8 SKYACTIV D Automatic | - | 51.4 mpg | - | -* | |
| 1.8d | - | 56.5 mpg | - | -* | |
| 1.8d Automatic | - | 50.4 mpg | - | -* | |
| 2.0 | - | 50.4–52.3 mpg | 43.9 mpg | 85%* | |
| 2.0 122 | - | 45.6 mpg | 44.5 mpg | 98%* | |
| 2.0 122 Automatic | - | 43.5–45.6 mpg | 37.0 mpg | 83%* | |
| 2.0 Automatic | - | 47.1 mpg | - | -* | |
| 2.0 SKYACTIV-G 122 Automatic | - | 47.1 mpg | 42.6 mpg | 90%* | |
| 2.0 SKYACTIV-X 180 | - | 51.4 mpg | 46.3 mpg | 90%* | |
| 2.0 SKYACTIV-X 180 Automatic | - | 45.6 mpg | 41.7 mpg | 91%* | |
| 2.0 SKYACTIV-X 180 Automatic AWD | - | 40.9 mpg | - | -* | |
| 2.0 SKYACTIV-X 180 AWD | - | 45.6 mpg | - | -* | |
| 2.0 SKYACTIV-X 186 | - | 52.3–56.6 mpg | 48.2 mpg | 88%* | |
| 2.0 SKYACTIV-X 186 Automatic | - | 47.1–47.9 mpg | 47.0 mpg | 99%* | 
Read the Honest John review...
Mazda 3 (2019 on)
                Looks great in hatchback and saloon form. Premium interior with excellent standard specification. Fun to drive with excellent manual and automatic gearboxes.
            
        Rivals
| Mazda 3 (2019 on) | 46.3 | avg mpg | 
| Ford Focus (2018 - 2025) | 45.9 | avg mpg | 
| Audi A3 (2020 on) | 46.1 | avg mpg | 
| SEAT Leon (2020 on) | 50.4 | avg mpg | 
