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2021 Porsche 911 fuel consumption
5 versions rated. Official figures from the Australian Government’s Green Vehicle Guide.
Fuel use, combined
12.6–13.7 L/100km
lower is better
Cost to run a year
$3,687–$4,009
at 14,000km
CO₂ from the exhaust
288–312 g/km
per kilometre
Uses 59% more fuel than the typical 2021 car, which averaged 7.9 L/100km.
Every 2021 Porsche 911 version
| Version | Engine | Fuel use | City | Highway | Cost/year | CO₂ |
|---|---|---|---|---|---|---|
| GT3 Coupe Auto | 4L 6cyl Petrol 98RON | 12.6 | 17.6 | 9.7 | $3,687 | 288 Worse than average |
| GT3 Touring Coupe Auto | 4L 6cyl Petrol 98RON | 13.0 | 18.2 | 10.0 | $3,804 | 297 Worse than average |
| GT3RS Convertible Auto | 4L 6cyl Petrol 98RON | 13.2 | 18.2 | 10.3 | $3,862 | 301 Worse than average |
| GT3 Coupe Manual | 4L 6cyl Petrol 98RON | 13.7 | 19.8 | 10.1 | $4,009 | 312 Worse than average |
| GT3 Touring Coupe Manual | 4L 6cyl Petrol 98RON | 13.7 | 19.8 | 10.1 | $4,009 | 312 Worse than average |
Porsche 911 in other years
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Figures come from a standardised laboratory test, so every car is measured the same way. Your own fuel use will differ with traffic, load, tyre pressure and how you drive. Running costs assume 14,000km a year at recent average fuel prices.