← all 2015 Porsche 911 Carrera 4S trims
2015 Porsche 911 Carrera 4S — 3.8L 6-cyl, AM-S7 automatic, 4WD
This 2015 Porsche 911 Carrera 4S (3.8L 6-cyl, AM-S7 automatic, 4WD) takes premium gasoline. PREMIUM
22
MPG combined (19 city / 26 hwy)
$3,500
est. fuel cost / year (EPA, 15k mi)
408 g/mi
tailpipe CO₂
The EPA lists this trim as premium because that's the fuel the manufacturer specified for its mileage test. Many such engines will run on regular with slightly lower power and MPG — but check your owner's manual to see whether premium is required or just recommended.
Other 2015 Porsche 911 Carrera 4S trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 3.8L 6-cyl, 7-spd manual, 4WD | PREMIUM | 21 | $3,650 |
EPA fuel type: Premium · class: Minicompact Cars · retrieved 2026-06-14.