44/100
2021Small Sport Utility Vehicle 4WDRegular

2021 Mazda CX-30 4WD

EPA ID: 43578
22
City MPG
25
Combined MPG
25MPG· Average
30
Highway MPG

Fuel Economy Overview

The 2021 Mazda CX-30 4WD achieves an EPA-estimated 25 MPG in combined city and highway driving, with 22 MPG in the city and 30 MPG on the highway. Powered by a 2.5L 4-cylinder turbocharged engine paired with a automatic (s6), this small sport utility vehicle 4wd features 4-Wheel Drive drive.

In terms of environmental impact, the 2021 CX-30 4WD produces approximately 353 grams of CO2 per mile. This figure is measured under standardized EPA test conditions and represents tailpipe emissions only. For context, the average new vehicle sold in the United States produces approximately 400 grams of CO2 per mile, meaning this CX-30 4WD performs better than the national average in this regard.

The estimated annual fuel cost for this vehicle is $2,400, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $1,250 over a 5-year period. This calculation accounts for differences in fuel consumption efficiency and provides a practical measure of long-term ownership costs attributable to fuel economy.

Energy DNA

Vehicle ClassSmall Sport Utility Vehicle 4WD
Fuel TypeRegular
Engine2.5L 4-cyl
AspirationTurbocharged
TransmissionAutomatic (S6)
Drive Type4-Wheel Drive

Green Scorecard

CO2 Emissions353 g/mi
Start-Stop SystemNot Equipped
GHG Score5/10
Smog RatingN/A
Est. Annual Cost$2,400
5-Year Cost DeltaSave $1,250

Personalized Commute CalculatorEPA defaults to 55% City / 45% Hwy

55% City45% Highway

Adjust the slider to match your daily driving habits. City driving involves stop-and-go traffic under 45mph, while highway driving represents sustained speeds over 55mph.

Your Real MPG
25.0
Impact vs EPA
$0
/ year
💨

The Brick Effect: Highway Speed Penalty

EPA highway tests average roughly 48 mph. Driving at 75 mph increases aerodynamic drag exponentially. Because the Small Sport Utility Vehicle 4WD has a large frontal area, expect your real-world highway fuel economy to drop by up to 25% at high speeds.

5-Year Total Cost of Ownership

Estimated Monthly Cost
$537/mo
Includes estimated depreciation, fuel, insurance, and state fees over 5 years. Does not include loan interest.
15,000 mi
Value Depreciation
Est. value lost over 60 months
$13,860
43.0%
Fuel & Electricity
Based on National Average rates ($3.50/gal)
$10,500
32.6%
Estimated Insurance
Based on vehicle class risk profile
$7,459
23.2%
State Registration Fees
Based on National Average DMV base rates
$400
1.2%
Total 5-Year Cost$32,219

Recall Intelligence

Campaign #21V086000·2021-04-08
moderate
Component: STRUCTURE:BODY:HATCHBACK/LIFTGATE

Mazda North American Operations (Mazda) is recalling certain 2020-2021 CX-30 vehicles. When fully opened, the power liftgate may partially lower unexpectedly when the vehicle is parked facing uphill on a slope.

Consequence & Remedy

Consequence: If the power liftgate unexpectedly lowers while a person is accessing the rear storage area of the vehicle, it can increase their risk of injury.

Remedy: Mazda will notify owners, and dealers will update the power liftgate control module software and inspect the serial number of the power liftgate drive unit, replacing it if necessary, free of charge. The recall began April 8, 2021. Owners may contact Mazda customer service at 1-800-222-5500 option 4. Mazda's number for this recall is 4621B.

Campaign #21V101000·2021-04-06
critical
Component: TIRES:VALVE

Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.

Consequence & Remedy

Consequence: A sudden air leak from the tire air valve may cause a loss of vehicle control while driving, increasing the risk of a crash.

Remedy: Mazda will notify owners, and dealers will replace all four tire air valves with new parts, free of charge. The recall began April 6, 2021. Owners may contact Mazda customer service at 1-800-222-5500 Option 4. Mazda's number for this recall is 4721B.

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Looking for comprehensive historical data?

NHTSA FARS (Fatal Crash History) and broader generational safety trends are aggregated at the model level rather than by specific engine configurations. View the complete historical data profile for all Mazda CX-30 4WD configurations.

View Model History

Similar 2021 Small Sport Utility Vehicle 4WD Alternatives

Fuel Cost Analysis

Annual Fuel Cost$2,400
vs. Avg Vehicle (5 yrs)Save $1,250

Based on 15,000 miles/year and current fuel prices.

Efficiency Breakdown

City22 MPG
Highway30 MPG
Combined25 MPG

Estimated Lifetime Carbon Footprint

(Based on 200,000 miles driven)

70.6 metric tons CO₂
Equivalent To:
🌳 87 tree seedlings grown for 10 yrs
✈️ 5.9 cross-country flights/yr

Data Provenance

Data directly from the EPA National Vehicle and Fuel Emissions Laboratory. The combined rating is a weighted average (55% city, 45% highway). For official figures, visit fueleconomy.gov.