2021 Volkswagen Jetta GLI MPG and Fuel Economy

On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 2021 Volkswagen Jetta GLI.

The 2021 Volkswagen Jetta GLI has 2 model options: Automatic (AM-S7) 4-cyl, 2.0 L and Manual 6-spd 4-cyl, 2.0 L.

The 2021 Volkswagen Jetta GLI Automatic (AM-S7) 4-cyl, 2.0 L runs on regular gasoline and is in the Compact Cars car class.

The 2021 Volkswagen Jetta GLI Manual 6-spd 4-cyl, 2.0 L runs on regular gasoline and is in the Compact Cars car class.

🛣 How Many Miles per Gallon (MPG) Does a 2021 Volkswagen Jetta GLI Get?

Across all models, the combined average MPG for the 2021 Volkswagen Jetta GLI is 28 miles per gallon.

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

Model OptionCombined MPGCity MPGHighway MPG
Automatic (AM-S7) 4-cyl, 2.0 L282435
Manual 6-spd 4-cyl, 2.0 L282433

💵 What is the Average Yearly Fuel Cost for a 2021 Volkswagen Jetta GLI?

The average fuel costs for all models of the 2021 Volkswagen Jetta GLI is $2,250.

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 2021 Volkswagen Jetta GLI to an average vehicle over 5 years, you will save $250 on fuel.

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

Model OptionFuel Cost5-Year Save/Spend
Automatic (AM-S7) 4-cyl, 2.0 L$2,250save $250
Manual 6-spd 4-cyl, 2.0 L$2,250save $250

🛢 How Many Barrels of Petroleum Does a 2021 Volkswagen Jetta GLI Consume?

Across all models, the average number barrels of petroleum that the 2021 Volkswagen Jetta GLI 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
Automatic (AM-S7) 4-cyl, 2.0 L11
Manual 6-spd 4-cyl, 2.0 L11

💨 How Many Grams of CO2 Does a 2021 Volkswagen Jetta GLI Emit?

The 2021 Volkswagen Jetta GLI will emit an average of about 4,747,500 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 162 trees would be needed to offset emissions from the 2021 Volkswagen Jetta GLI.

Overview

The tables below cover all of the miles per gallon, engine specifications, and emission details we have for the 2 2021 Volkswagen Jetta GLI model options.

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

The table below contains all of the details we have for the 2021 Volkswagen Jetta GLI Automatic (AM-S7) 4-cyl, 2.0 L:

City MPG24
Highway MPG35
Combined MPG28
Save/Spend vs Average CarSave $250
Fuel Cost$2,250
Fuel Type 1Regular
Barrels of Petroleum11
Grams of CO24,710,000
Trees Needed to Offset224
DriveFront-Wheel Drive
Cylinders4
Displacement2
TransmissionAutomatic (AM-S7)
Vehicle ClassCompact Cars
Start/Stop?Yes
Supercharged?No
Turbocharged?Yes

Manual 6-spd 4-cyl, 2.0 L

The table below contains all of the details we have for the 2021 Volkswagen Jetta GLI Manual 6-spd 4-cyl, 2.0 L:

City MPG24
Highway MPG33
Combined MPG28
Save/Spend vs Average CarSave $250
Fuel Cost$2,250
Fuel Type 1Regular
Barrels of Petroleum11
Grams of CO24,785,000
Trees Needed to Offset228
DriveFront-Wheel Drive
Cylinders4
Displacement2
TransmissionManual 6-spd
Vehicle ClassCompact Cars
Start/Stop?No
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.

  • "2021 Volkswagen Jetta GLI MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/volkswagen/jetta-gli/2021.

  • "2021 Volkswagen Jetta GLI MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/volkswagen/jetta-gli/2021. Accessed January 3, 2026.

  • 2021 Volkswagen Jetta GLI MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/volkswagen/jetta-gli/2021.