Real MPG: Peugeot 508 (2018 - 2025) 1.6 Puretech 180 EAT8
                
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                                51.4–52.3
                            
                            Official MPG(NEDC)
                                    44.0
                                
                                Official MPG(WLTP)
42.0–52.0                            
                            Real MPG
                        
                                45.2
                            
                            Real MPGAverage
                                    87%
                                
                                of Official MPG(NEDC)
                                    103%
                                
                                of Official MPG(WLTP)
More engines available for this model:
| Engine | Official MPG (NEDC) | Official MPG (WLTP) | Real MPG Avg. | Real MPG % | |
| 1.2 Puretech 130 EAT8 | - | 49.1 mpg | - | -* | |
| 1.5 BlueHDi 130 | 72.4–74.3 mpg | - | 57.2 mpg | 78% | |
| 1.5 BlueHDi 130 EAT8 | 74.3–76.3 mpg | 62.0 mpg | 51.7 mpg | 83%* | |
| 1.6 Hybrid | - | 235.4 mpg | - | -* | |
| 1.6 Hybrid4 | - | 138.9 mpg | - | -* | |
| 1.6 Puretech 225 EAT8 | 49.6 mpg | 42.2 mpg | 39.1 mpg | 93%* | |
| 2.0 BlueHDi 160 EAT8 | 60.1–62.8 mpg | - | 44.6 mpg | 73% | 
Read the Honest John review...
Peugeot 508 (2018 - 2025)
                Stand-out styling. Premium interior. Superb eight-speed automatic gearbox.
            
        Rivals
| Peugeot 508 (2018 - 2025) | 46.6 | avg mpg | 
| Volvo XC60 (2017 on) | 37.0 | avg mpg | 
| BMW 3 Series (2019 on) | 46.0 | avg mpg | 
| Mercedes-Benz A-Class (2018 on) | 44.7 | avg mpg | 
