Porsche · Standard SUVs · Gasoline
Porsche Cayenne: MPG and annual fuel cost, 2026
The Porsche Cayenne has 7 rated versions for 2026, from 17 to 19 MPG combined; its most efficient version is tied for 67th of 90 standard SUVs, in the bottom quarter.
- 19MPG combinedtied 67th of 90 in class
- $4,350a year in fueltied 73rd of 90 in class
- 469g/mile CO2
Where it stands
Compared only with the gasoline models of its class it is tied for 19th of 36 gasoline standard SUVs, in the lower half. The median of that narrower group is 19.5 MPG, against 22.5 MPG for all standard SUVs together.
Among all gasoline models of the year, regardless of size, it is tied for 145th of 180 gasoline models, in the bottom quarter.
Within the 6 Porsche models rated for 2026 it is 6th on combined rating; the median of the make's line-up is 21 MPG.
In its class, just ahead of it is the Audi Q7 Hybrid at 20 MPG and just behind it is the Infiniti QX80 at 18 MPG.
Fuel cost and CO2
At 15,000 miles a year with 55% of them in the city, with premium gasoline at $5.48 per gallon, the annual fuel bill of the most efficient version is about $4,350. That is $975 more than the standard SUVs median of $3,375, which makes it tied for 73rd of 90 standard SUVs, in the bottom quarter.
It emits 469 g of CO2 per mile from the tailpipe; the standard SUVs median is 387, a difference of 82 g/mile.
Rated versions
Its city rating is 17 and its highway rating 23: the highway figure is 6 higher. 7 versions are rated for 2026. The most efficient, Cayenne Coupe: 3.0 L, 6 cyl, Automatic (S8), AWD, gets 19 MPG; the least efficient listed, Cayenne Turbo GT: 4.0 L, 8 cyl, Automatic (S8), AWD, gets 17 MPG, a gap of 2 MPG. With the file's assumptions that gap is worth about $500 a year in fuel.
| Version | Combined MPG | City MPG | Highway MPG | Annual fuel cost | CO2 g/mile |
|---|---|---|---|---|---|
| Cayenne Coupe: 3.0 L, 6 cyl, Automatic (S8), AWD | 19 | 17 | 23 | $4,350 | 469 |
| Cayenne: 3.0 L, 6 cyl, Automatic (S8), AWD | 19 | 17 | 23 | $4,350 | 469 |
| Cayenne GTS Coupe: 4.0 L, 8 cyl, Automatic (S8), AWD | 18 | 16 | 22 | $4,550 | 489 |
| Cayenne GTS: 4.0 L, 8 cyl, Automatic (S8), AWD | 18 | 15 | 22 | $4,550 | 512 |
| Cayenne S Coupe: 4.0 L, 8 cyl, Automatic (S8), AWD | 18 | 16 | 21 | $4,550 | 492 |
| Cayenne S: 4.0 L, 8 cyl, Automatic (S8), AWD | 18 | 16 | 21 | $4,550 | 492 |
| Cayenne Turbo GT: 4.0 L, 8 cyl, Automatic (S8), AWD | 17 | 15 | 20 | $4,850 | 521 |
Year by year
The Porsche Cayenne is in the data for 8 of the 8 model years from 2019 to 2026. Between 2019 and 2026 the best combined rating fell by 2 MPG, from 21 to 19. The number of rated versions grew from 3 to 7. Fuel cost for the best version is $4,350 in the latest data against $3,900 in 2019, although the file applies today's fuel prices to every model year, so that change comes from the rating, not from prices.
| Model year | Versions | Best MPG | Lowest MPG | Fuel cost | CO2 g/mi | Class median |
|---|---|---|---|---|---|---|
| 2026 | 7 | 19 | 17 | $4,350 | 469 | 22.5 |
| 2025 | 7 | 19 | 17 | $4,350 | 469 | 22.5 |
| 2024 | 4 | 19 | 17 | $4,350 | 469 | 22 |
| 2023 | 9 | 19 | 16 | $4,350 | 466 | 21 |
| 2022 | 9 | 19 | 16 | $4,350 | 466 | 21 |
| 2021 | 8 | 20 | 17 | $4,100 | 437 | 20.5 |
| 2020 | 6 | 20 | 17 | $4,100 | 437 | 21 |
| 2019 | 3 | 21 | 17 | $3,900 | 427 | 21 |
Similar models
| Model | Powertrain | Combined MPG | Annual fuel cost | Model year |
|---|---|---|---|---|
| Jeep Grand Wagoneer | Gasoline | 19 | $3,550 | 2026 |
| Audi Q8 | Hybrid | 19 | $4,350 | 2026 |
| Dodge Durango | Gasoline | 20 | $3,350 | 2026 |
| Nissan Armada | Gasoline | 18 | $4,550 | 2026 |
| Land Rover Defender Hybrid | Hybrid | 20 | $4,100 | 2026 |
Rated almost identically and covered by this page:
- Ford Expedition 19 MPG, $3,550 a year, 2 versions, last rated 2026
Compare and rank
Rankings: Standard SUVs, Gasoline, Porsche, Gasoline standard SUVs.
Data: US EPA and DOE, as prepared in methods and data.