2018 Audi A6 MPG and Fuel Economy

On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 2018 Audi A6.

The 2018 Audi A6 runs on premium gasoline and is in the Midsize Cars car class.

Whether you are considering a purchase of the car, or just wanting to find out how economical and environmentally friendly (or un-friendly) your 2018 Audi A6 is, we have the information you need.

🛣 How Many Miles per Gallon (MPG) Does a 2018 Audi A6 Get?

First off, the most commonly asked question. A 2018 Audi A6 gets up to 25 miles per gallon in the city, and 34 miles per gallon on the highway.

The combined average MPG for the 2018 Audi A6 is 28 miles per gallon.

💵 What is the Average Yearly Fuel Cost for a 2018 Audi A6?

The estimated fuel costs for the 2018 Audi A6 is $2,650 per year.

That value has 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.

If you were to compare a 2018 Audi A6 to an average vehicle over 5 years, you will spend $1,750 more on fuel.

🛢 How Many Barrels of Petroleum Does a 2018 Audi A6 Consume?

The 2018 Audi A6 will consume roughly 11 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.

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

💨 How Many Grams of CO2 Does a 2018 Audi A6 Emit?

For every mile driven, the 2018 Audi A6 will emit 311 grams of CO2, which is about 4,665,000 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 159 trees would be needed to offset emissions from the 2018 Audi A6.


The table below covers all of the miles per gallon, engine specifications, and emission details we have for the 2018 Audi A6.

City MPG 25
Highway MPG 34
Combined MPG 28
Save/Spend vs Average Car Spend $1,750
Fuel Cost $2,650
Fuel Type 1 Premium
Barrels of Petroleum 11
Grams of CO2 4,665,000
Trees Needed to Offset 222
Drive Front-Wheel Drive
Cylinders 4
Transmission Automatic (AM-S7)
Vehicle Class Midsize Cars
Start/Stop? Yes
Supercharged? No
Turbocharged? Yes

Related Audi Models from 2018

If you're interested in other Audi models from 2018, you can find them in the table below. You can click the model link to find miles per gallon and emission information for that model.

Model Combined MPG
A3 e-tron 36
A4 quattro 27
Q7 21
RS 5 21
S5 Cabriolet 23
R8 Spyder RWD 18
A8 L 19
A4 Ultra 31
A3 Cabriolet quattro 25
S6 18
S4 24
S8 18
TT Roadster quattro 26
A3 29
RS 3 22
S7 18
SQ5 21
TTS Coupe 25
A6 quattro 23
Q5 25


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.

Link To or Reference This Page

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  • "2018 Audi A6 MPG and Fuel Economy". MPG Buddy. Accessed on December 9, 2022. http://mpgbuddy.com/cars/audi/a6/2018.

  • "2018 Audi A6 MPG and Fuel Economy". MPG Buddy, http://mpgbuddy.com/cars/audi/a6/2018. Accessed 9 December, 2022

  • 2018 Audi A6 MPG and Fuel Economy. MPG Buddy. Retrieved from http://mpgbuddy.com/cars/audi/a6/2018.