Fuel economy details

Porsche 911 GT3 2026

EPA fuel-economy estimates for 1 version of this vehicle. Review the published configuration below.

15combined MPG

14 / 17city / highway MPG

$5,500estimated annual fuel cost

How to use these estimates

EPA ratings use standardized city and highway tests, making them a useful starting point for comparing similar vehicles. For model years with several versions, choose the powertrain that matches the vehicle you are considering before relying on a rating.

Your actual fuel or electricity use can vary with weather, payload, driving style, maintenance, and local prices.

SIDI · Automatic (AM-S7)

15 combined MPG

Fuel typePremium Gasoline

Vehicle classTwo Seaters

DriveRear-Wheel Drive

TransmissionAutomatic (AM-S7)

Tailpipe CO₂593 g/mi

EPA base model911

Start-stop systemYes

Efficiency and cost

EPA fuel economy score: 2
EPA greenhouse gas score: 2
Estimated annual petroleum use: 19.8 barrels
Five-year fuel-cost comparison: costs $15,500 more

EPA class benchmark

Compared with 38 EPA records from 2026 in this vehicle class and fuel type.

Efficiency position: At or above 26%
Combined MPG vs median: 3 MPG below the class median.
Annual cost vs median: $950 higher than the class median.

Where these numbers come from

Source: EPA FuelEconomy.gov. This page was last updated on October 3, 2026. Learn more about how we use vehicle data.