2020 Mazda 3 4-Door 4WD MPG and Fuel Economy

On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 2020 Mazda 3 4-Door 4WD.

The 2020 Mazda 3 4-Door 4WD runs on regular gasoline and is in the Compact 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 2020 Mazda 3 4-Door 4WD is, we have the information you need.

🛣 How Many Miles per Gallon (MPG) Does a 2020 Mazda 3 4-Door 4WD Get?

First off, the most commonly asked question. A 2020 Mazda 3 4-Door 4WD gets up to 25 miles per gallon in the city, and 33 miles per gallon on the highway.

The combined average MPG for the 2020 Mazda 3 4-Door 4WD is 28 miles per gallon.

💵 What is the Average Yearly Fuel Cost for a 2020 Mazda 3 4-Door 4WD?

The estimated fuel costs for the 2020 Mazda 3 4-Door 4WD is $2,250 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 2020 Mazda 3 4-Door 4WD to an average vehicle over 5 years, you will save $250 on fuel.

🛢 How Many Barrels of Petroleum Does a 2020 Mazda 3 4-Door 4WD Consume?

The 2020 Mazda 3 4-Door 4WD 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 2020 Mazda 3 4-Door 4WD Emit?

For every mile driven, the 2020 Mazda 3 4-Door 4WD will emit 313 grams of CO2, which is about 4,695,000 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 160 trees would be needed to offset emissions from the 2020 Mazda 3 4-Door 4WD.

Overview

The table below covers all of the miles per gallon, engine specifications, and emission details we have for the 2020 Mazda 3 4-Door 4WD.

City MPG25
Highway MPG33
Combined MPG28
Save/Spend vs Average CarSave $250
Fuel Cost$2,250
Fuel Type 1Regular
Barrels of Petroleum11
Grams of CO24,695,000
Trees Needed to Offset224
Drive4-Wheel Drive
Cylinders4
Displacement2.5
TransmissionAutomatic (S6)
Vehicle ClassCompact Cars
Start/Stop?No
Supercharged?No
Turbocharged?No

Related Mazda Models from 2020

If you're interested in other Mazda models from 2020, 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.

Link To or Reference This Page

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

  • "2020 Mazda 3 4-Door 4WD MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/mazda/3-4-door-4wd/2020.

  • "2020 Mazda 3 4-Door 4WD MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/mazda/3-4-door-4wd/2020. Accessed January 3, 2026.

  • 2020 Mazda 3 4-Door 4WD MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/mazda/3-4-door-4wd/2020.