FuelFacts

Does the 2015 Porsche 911 Carrera 4 Cabriolet need premium gas?

Every gas trim of this model takes premium.

Trim (engine / transmission)FuelMPGFuel/yr
3.4L 6-cyl, AM-S7 automatic, 4WDPREMIUM22$3,500
3.4L 6-cyl, 7-spd manual, 4WDPREMIUM21$3,650
The EPA records the fuel each version was tested on. Whether premium is strictly required or just recommended is an owner's-manual detail the EPA dataset doesn't include — so we don't guess it.

2 trim(s) · EPA FuelEconomy.gov · retrieved 2026-06-14.