McLaren 600LT Fuel Consumption
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                         2019 600LT Spider | 2019 - to present  | 
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| Modification | Recommended fuel | City consumption | Highway economy | Combined cycle | |||||||||
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| 3.8 V8 SSG | Petrol (Gasoline) | 
                                                                    14.4 mpg(USA)
                                     16.3 l/100 km  | 
                            
                                                                    25.8 mpg(USA)
                                     9.1 l/100 km  | 
                            
                                                                    20.1 mpg(USA)
                                     11.7 l/100 km  | 
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                         2018 600LT | 2018 - to present  | 
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| Modification | Recommended fuel | City consumption | Highway economy | Combined cycle | |||||||||
| 3.8 V8 SSG | Petrol (Gasoline) | 
                                                                    14.4 mpg(USA)
                                     16.3 l/100 km  | 
                            
                                                                    25.8 mpg(USA)
                                     9.1 l/100 km  | 
                            
                                                                    20.1 mpg(USA)
                                     11.7 l/100 km  | 
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