2015 Mazda 6 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 Mazda 6.

The 2015 Mazda 6 has 3 model options: Automatic (S6) 4-cyl, 2.5 L, Automatic (S6) 4-cyl, 2.5 L and Manual 6-spd 4-cyl, 2.5 L.

The 2015 Mazda 6 Automatic (S6) 4-cyl, 2.5 L runs on regular gasoline and is in the Midsize Cars car class.

The 2015 Mazda 6 Automatic (S6) 4-cyl, 2.5 L runs on regular gasoline and is in the Midsize Cars car class.

The 2015 Mazda 6 Manual 6-spd 4-cyl, 2.5 L runs on regular gasoline and is in the Midsize Cars car class.

🛣 How Many Miles per Gallon (MPG) Does a 2015 Mazda 6 Get?

Across all models, the combined average MPG for the 2015 Mazda 6 is 30 miles per gallon.

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

Model Option Combined MPG City MPG Highway MPG
Automatic (S6) 4-cyl, 2.5 L 30 26 37
Automatic (S6) 4-cyl, 2.5 L 32 28 39
Manual 6-spd 4-cyl, 2.5 L 29 25 35

💵 What is the Average Yearly Fuel Cost for a 2015 Mazda 6?

The average fuel costs for all models of the 2015 Mazda 6 is $2,067.

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 Mazda 6 to an average vehicle over 5 years, you will save $1,167 on fuel.

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

Model Option Fuel Cost 5-Year Save/Spend
Automatic (S6) 4-cyl, 2.5 L $2,100 save $1,000
Automatic (S6) 4-cyl, 2.5 L $1,950 save $1,750
Manual 6-spd 4-cyl, 2.5 L $2,150 save $750

🛢 How Many Barrels of Petroleum Does a 2015 Mazda 6 Consume?

Across all models, the average number barrels of petroleum that the 2015 Mazda 6 will consume in one year is 10 barrels.

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

Model Option Barrels
Automatic (S6) 4-cyl, 2.5 L 10
Automatic (S6) 4-cyl, 2.5 L 9
Manual 6-spd 4-cyl, 2.5 L 10

💨 How Many Grams of CO2 Does a 2015 Mazda 6 Emit?

The 2015 Mazda 6 will emit an average of about 4,430,000 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 151 trees would be needed to offset emissions from the 2015 Mazda 6.

Overview

The tables below cover all of the miles per gallon, engine specifications, and emission details we have for the 3 2015 Mazda 6 model options.

Automatic (S6) 4-cyl, 2.5 L

The table below contains all of the details we have for the 2015 Mazda 6 Automatic (S6) 4-cyl, 2.5 L:

City MPG 26
Highway MPG 37
Combined MPG 30
Save/Spend vs Average Car Save 1,000
Fuel Cost $2,100
Fuel Type 1 Regular
Barrels of Petroleum 10
Grams of CO2 4,470,000
Trees Needed to Offset 213
Drive Front-Wheel Drive
Cylinders 4
Transmission Automatic (S6)
Vehicle Class Midsize Cars
Start/Stop? No
Supercharged? No
Turbocharged? No

Automatic (S6) 4-cyl, 2.5 L

The table below contains all of the details we have for the 2015 Mazda 6 Automatic (S6) 4-cyl, 2.5 L:

City MPG 28
Highway MPG 39
Combined MPG 32
Save/Spend vs Average Car Save 1,750
Fuel Cost $1,950
Fuel Type 1 Regular
Barrels of Petroleum 9
Grams of CO2 4,200,000
Trees Needed to Offset 200
Drive Front-Wheel Drive
Cylinders 4
Transmission Automatic (S6)
Vehicle Class Midsize Cars
Start/Stop? No
Supercharged? No
Turbocharged? No

Manual 6-spd 4-cyl, 2.5 L

The table below contains all of the details we have for the 2015 Mazda 6 Manual 6-spd 4-cyl, 2.5 L:

City MPG 25
Highway MPG 35
Combined MPG 29
Save/Spend vs Average Car Save 750
Fuel Cost $2,150
Fuel Type 1 Regular
Barrels of Petroleum 10
Grams of CO2 4,620,000
Trees Needed to Offset 220
Drive Front-Wheel Drive
Cylinders 4
Transmission Manual 6-spd
Vehicle Class Midsize Cars
Start/Stop? No
Supercharged? No
Turbocharged? No

Disclaimer

Ratings were provided by the manufacturer to the U.S. Department of Energy, which is where we sourced the data. Be advised that manufacturers may have upgraded, downgraded, or changed these ratings following the compilation of this data.

MPG Buddy does not guarantee the accuracy of this data, nor are we liable for any decisions made by referencing this data. Make sure to contact the specific car manufacturer to confirm accuracy.

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  • "2015 Mazda 6 MPG and Fuel Economy". MPG Buddy. Accessed on May 28, 2022. http://mpgbuddy.com/cars/mazda/6/2015.

  • "2015 Mazda 6 MPG and Fuel Economy". MPG Buddy, http://mpgbuddy.com/cars/mazda/6/2015. Accessed 28 May, 2022

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