Porsche 911 review - MPG and running costs
Expect MPG in the low 30s on a cruise, and a tank range of 350-400 miles
Figures for the standard Carrera sit between 26-29mpg on the WLTP cycle, the Carrera S is capable of a combined 25-28mpg. All-wheel drive models don't represent a huge drop considering the additional driveline components.
Those figures are actually quite realistic, as you’d hope from the WLTP test. A touring figure of 30mpg or more certainly isn’t out of reach in our experience, though it’s worth mentioning that for all the supposed economy and emissions benefits of turbocharged engines, we achieved much the same figures with similar ease from the old naturally aspirated models…
Extend the flat-six and you can expect lower numbers, but with a 64-litre fuel tank (67 litres in the 4S) you can expect a tank range of 350-400 miles.