2015 Porsche 911 Carrera 4S MPG and Fuel Economy

On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 2015 Porsche 911 Carrera 4S.

The 2015 Porsche 911 Carrera 4S has 2 model options: Manual 7-spd 6-cyl, 3.8 L and Automatic (AM-S7) 6-cyl, 3.8 L.

The 2015 Porsche 911 Carrera 4S Manual 7-spd 6-cyl, 3.8 L runs on premium gasoline and is in the Minicompact Cars car class.

The 2015 Porsche 911 Carrera 4S Automatic (AM-S7) 6-cyl, 3.8 L runs on premium gasoline and is in the Minicompact Cars car class.

🛣 How Many Miles per Gallon (MPG) Does a 2015 Porsche 911 Carrera 4S Get?

Across all models, the combined average MPG for the 2015 Porsche 911 Carrera 4S is 22 miles per gallon.

The table below breaks down the MPG for each model option:

Model OptionCombined MPGCity MPGHighway MPG
Manual 7-spd 6-cyl, 3.8 L211826
Automatic (AM-S7) 6-cyl, 3.8 L221926

💵 What is the Average Yearly Fuel Cost for a 2015 Porsche 911 Carrera 4S?

The average fuel costs for all models of the 2015 Porsche 911 Carrera 4S is $3,425.

The average fuel costs have been estimated by government regulators based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.

Comparing a 2015 Porsche 911 Carrera 4S to an average vehicle over 5 years, you will spend $5,625 more on fuel.

The table below shows the fuel costs and 5-year save/spend for each model option:

Model OptionFuel Cost5-Year Save/Spend
Manual 7-spd 6-cyl, 3.8 L$3,500spend $6,000 more
Automatic (AM-S7) 6-cyl, 3.8 L$3,350spend $5,250 more

🛢 How Many Barrels of Petroleum Does a 2015 Porsche 911 Carrera 4S Consume?

Across all models, the average number barrels of petroleum that the 2015 Porsche 911 Carrera 4S will consume in one year is 14 barrels.

The majority of the world's petroleum is sourced from countries like Saudi Arabia, Russia, Iraq, and the United States.

Model OptionBarrels
Manual 7-spd 6-cyl, 3.8 L14
Automatic (AM-S7) 6-cyl, 3.8 L14

💨 How Many Grams of CO2 Does a 2015 Porsche 911 Carrera 4S Emit?

The 2015 Porsche 911 Carrera 4S will emit an average of about 6,195,000 grams of CO2 per year.

🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 211 trees would be needed to offset emissions from the 2015 Porsche 911 Carrera 4S.

Overview

The tables below cover all of the miles per gallon, engine specifications, and emission details we have for the 2 2015 Porsche 911 Carrera 4S model options.

Manual 7-spd 6-cyl, 3.8 L

The table below contains all of the details we have for the 2015 Porsche 911 Carrera 4S Manual 7-spd 6-cyl, 3.8 L:

City MPG18
Highway MPG26
Combined MPG21
Save/Spend vs Average CarSpend $6,000
Fuel Cost$3,500
Fuel Type 1Premium
Barrels of Petroleum14
Grams of CO26,270,000
Trees Needed to Offset299
Drive4-Wheel Drive
Cylinders6
Displacement3.8
TransmissionManual 7-spd
Vehicle ClassMinicompact Cars
Start/Stop?No
Supercharged?No
Turbocharged?No

Automatic (AM-S7) 6-cyl, 3.8 L

The table below contains all of the details we have for the 2015 Porsche 911 Carrera 4S Automatic (AM-S7) 6-cyl, 3.8 L:

City MPG19
Highway MPG26
Combined MPG22
Save/Spend vs Average CarSpend $5,250
Fuel Cost$3,350
Fuel Type 1Premium
Barrels of Petroleum14
Grams of CO26,120,000
Trees Needed to Offset291
Drive4-Wheel Drive
Cylinders6
Displacement3.8
TransmissionAutomatic (AM-S7)
Vehicle ClassMinicompact Cars
Start/Stop?No
Supercharged?No
Turbocharged?No

Link To or Reference This Page

If you use this page in your research, please reference MPG Buddy as the source.

  • "2015 Porsche 911 Carrera 4S MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/porsche/911-carrera-4s/2015.

  • "2015 Porsche 911 Carrera 4S MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/porsche/911-carrera-4s/2015. Accessed January 3, 2026.

  • 2015 Porsche 911 Carrera 4S MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/porsche/911-carrera-4s/2015.