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Porsche 911 2018 fuel consumption

Porsche 911 from 2018 to 2021 real fuel consumption according to user reports is approximately 20% higher compared to advertised fuel consumption. Starting from 2018 Porsche 911 average difference between actual owner-reported fuel consumption and stated consumption was less than industry average, at 2019 difference between owner-reported and advertised fuel economy became slightly above industry average. For more details, see the table below.

Year-to-year deviations of actual owner-reported average fuel consumption from advertised values

YearGasoline cars
All carmakersPorsche 911
2018+28%+31%
Show all years
2019+27%+31%
2020+27%+31%
2021+26%+31%

See below for the actual consumption of generations and versions of Porsche 911.

2018

Porsche 911 2018 fuel economy

Average advertised fuel consumption for petrol engines26.3 MPG
9.0 l/100km
Average real-world fuel consumption for petrol engines20.1 MPG
11.7 l/100km
Average real gasoline consumption difference *+31%
ModificationClaimed consumptionReal consumption
3.0 liter petrol engine
Porsche 911 2018 Carrera 4S 3.0 450 HP 4x4 automatic 26.1 MPG
9.0 l/100km
20.1 MPG
11.7 l/100km+30%
Porsche 911 2018 Carrera S 3.0 450 HP automatic 26.4 MPG
8.9 l/100km
20.1 MPG
11.7 l/100km+31%

* - Difference between advertised and user reported fuel economy has been calculated taking into account only those car versions for which information is available both on the fuel consumption specified by the manufacturer and reported by users.

User-reported fuel consumption may not accurately represent all users' experiences due to variables such as driving conditions, driving style, technical condition of the vehicle, and other circumstances. Thus, it should not be relied upon as a representative indicator.