2018 Audi A5 quattro 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 A5 quattro.

The 2018 Audi A5 quattro has 2 model options: Manual 6-spd 4-cyl, 2.0 L and Automatic (AM-S7) 4-cyl, 2.0 L.

The 2018 Audi A5 quattro Manual 6-spd 4-cyl, 2.0 L runs on premium gasoline and is in the Subcompact Cars car class.

The 2018 Audi A5 quattro Automatic (AM-S7) 4-cyl, 2.0 L runs on premium gasoline and is in the Subcompact Cars car class.

🛣 How Many Miles per Gallon (MPG) Does a 2018 Audi A5 quattro Get?

Across all models, the combined average MPG for the 2018 Audi A5 quattro is 27 miles per gallon.

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

Model OptionCombined MPGCity MPGHighway MPG
Manual 6-spd 4-cyl, 2.0 L272433
Automatic (AM-S7) 4-cyl, 2.0 L272434

💵 What is the Average Yearly Fuel Cost for a 2018 Audi A5 quattro?

The average fuel costs for all models of the 2018 Audi A5 quattro is $2,750.

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 2018 Audi A5 quattro to an average vehicle over 5 years, you will spend $2,250 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 6-spd 4-cyl, 2.0 L$2,750spend $2,250 more
Automatic (AM-S7) 4-cyl, 2.0 L$2,750spend $2,250 more

🛢 How Many Barrels of Petroleum Does a 2018 Audi A5 quattro Consume?

Across all models, the average number barrels of petroleum that the 2018 Audi A5 quattro will consume in one year is 11 barrels.

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

Model OptionBarrels
Manual 6-spd 4-cyl, 2.0 L11
Automatic (AM-S7) 4-cyl, 2.0 L11

💨 How Many Grams of CO2 Does a 2018 Audi A5 quattro Emit?

The 2018 Audi A5 quattro will emit an average of about 4,905,000 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 168 trees would be needed to offset emissions from the 2018 Audi A5 quattro.

Overview

The tables below cover all of the miles per gallon, engine specifications, and emission details we have for the 2 2018 Audi A5 quattro model options.

Manual 6-spd 4-cyl, 2.0 L

The table below contains all of the details we have for the 2018 Audi A5 quattro Manual 6-spd 4-cyl, 2.0 L:

City MPG24
Highway MPG33
Combined MPG27
Save/Spend vs Average CarSpend $2,250
Fuel Cost$2,750
Fuel Type 1Premium
Barrels of Petroleum11
Grams of CO24,905,000
Trees Needed to Offset234
DriveAll-Wheel Drive
Cylinders4
Displacement2
TransmissionManual 6-spd
Vehicle ClassSubcompact Cars
Start/Stop?No
Supercharged?No
Turbocharged?Yes

Automatic (AM-S7) 4-cyl, 2.0 L

The table below contains all of the details we have for the 2018 Audi A5 quattro Automatic (AM-S7) 4-cyl, 2.0 L:

City MPG24
Highway MPG34
Combined MPG27
Save/Spend vs Average CarSpend $2,250
Fuel Cost$2,750
Fuel Type 1Premium
Barrels of Petroleum11
Grams of CO24,905,000
Trees Needed to Offset234
DriveAll-Wheel Drive
Cylinders4
Displacement2
TransmissionAutomatic (AM-S7)
Vehicle ClassSubcompact Cars
Start/Stop?Yes
Supercharged?No
Turbocharged?Yes

Link To or Reference This Page

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

  • "2018 Audi A5 quattro MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/audi/a5-quattro/2018.

  • "2018 Audi A5 quattro MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/audi/a5-quattro/2018. Accessed January 3, 2026.

  • 2018 Audi A5 quattro MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/audi/a5-quattro/2018.