2018 Subaru WRX 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 Subaru WRX.

The 2018 Subaru WRX has 3 model options: Manual 6-spd 4-cyl, 2.0 L, Automatic (AV-S8) 4-cyl, 2.0 L and Manual 6-spd 4-cyl, 2.5 L.

The 2018 Subaru WRX Manual 6-spd 4-cyl, 2.0 L runs on premium gasoline and is in the Compact Cars car class.

The 2018 Subaru WRX Automatic (AV-S8) 4-cyl, 2.0 L runs on premium gasoline and is in the Compact Cars car class.

The 2018 Subaru WRX Manual 6-spd 4-cyl, 2.5 L runs on premium gasoline and is in the Compact Cars car class.

🛣 How Many Miles per Gallon (MPG) Does a 2018 Subaru WRX Get?

Across all models, the combined average MPG for the 2018 Subaru WRX is 21 miles per gallon.

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

Model Option Combined MPG City MPG Highway MPG
Manual 6-spd 4-cyl, 2.0 L 23 21 27
Automatic (AV-S8) 4-cyl, 2.0 L 21 18 24
Manual 6-spd 4-cyl, 2.5 L 19 17 22

💵 What is the Average Yearly Fuel Cost for a 2018 Subaru WRX?

The average fuel costs for all models of the 2018 Subaru WRX is $3,533.

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 Subaru WRX to an average vehicle over 5 years, you will spend $6,167 more 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
Manual 6-spd 4-cyl, 2.0 L $3,200 spend $4,500 more
Automatic (AV-S8) 4-cyl, 2.0 L $3,500 spend $6,000 more
Manual 6-spd 4-cyl, 2.5 L $3,900 spend $8,000 more

🛢 How Many Barrels of Petroleum Does a 2018 Subaru WRX Consume?

Across all models, the average number barrels of petroleum that the 2018 Subaru WRX 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 Option Barrels
Manual 6-spd 4-cyl, 2.0 L 13
Automatic (AV-S8) 4-cyl, 2.0 L 14
Manual 6-spd 4-cyl, 2.5 L 16

💨 How Many Grams of CO2 Does a 2018 Subaru WRX Emit?

The 2018 Subaru WRX will emit an average of about 6,370,000 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 217 trees would be needed to offset emissions from the 2018 Subaru WRX.

Overview

The tables below cover all of the miles per gallon, engine specifications, and emission details we have for the 3 2018 Subaru WRX model options.

Manual 6-spd 4-cyl, 2.0 L

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

City MPG 21
Highway MPG 27
Combined MPG 23
Save/Spend vs Average Car Spend $4,500
Fuel Cost $3,200
Fuel Type 1 Premium
Barrels of Petroleum 13
Grams of CO2 5,745,000
Trees Needed to Offset 274
Drive All-Wheel Drive
Cylinders 4
Transmission Manual 6-spd
Vehicle Class Compact Cars
Start/Stop? No
Supercharged? No
Turbocharged? Yes

Automatic (AV-S8) 4-cyl, 2.0 L

The table below contains all of the details we have for the 2018 Subaru WRX Automatic (AV-S8) 4-cyl, 2.0 L:

City MPG 18
Highway MPG 24
Combined MPG 21
Save/Spend vs Average Car Spend $6,000
Fuel Cost $3,500
Fuel Type 1 Premium
Barrels of Petroleum 14
Grams of CO2 6,300,000
Trees Needed to Offset 300
Drive All-Wheel Drive
Cylinders 4
Transmission Automatic (AV-S8)
Vehicle Class Compact Cars
Start/Stop? No
Supercharged? No
Turbocharged? Yes

Manual 6-spd 4-cyl, 2.5 L

The table below contains all of the details we have for the 2018 Subaru WRX Manual 6-spd 4-cyl, 2.5 L:

City MPG 17
Highway MPG 22
Combined MPG 19
Save/Spend vs Average Car Spend $8,000
Fuel Cost $3,900
Fuel Type 1 Premium
Barrels of Petroleum 16
Grams of CO2 7,065,000
Trees Needed to Offset 336
Drive All-Wheel Drive
Cylinders 4
Transmission Manual 6-spd
Vehicle Class Compact Cars
Start/Stop? No
Supercharged? No
Turbocharged? Yes

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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  • "2018 Subaru WRX MPG and Fuel Economy". MPG Buddy. Accessed on November 26, 2022. http://mpgbuddy.com/cars/subaru/wrx/2018.

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