46/100
2020Small Sport Utility Vehicle 4WDRegular

2020 Mazda CX-30 4WD

EPA ID: 42424
24
City MPG
26
Combined MPG
26MPG· Average
31
Highway MPG

Fuel Economy Overview

The 2020 Mazda CX-30 4WD achieves an EPA-estimated 26 MPG in combined city and highway driving, with 24 MPG in the city and 31 MPG on the highway. Powered by a 2.5L 4-cylinder engine paired with a automatic (s6), this small sport utility vehicle 4wd features 4-Wheel Drive drive.

In terms of environmental impact, the 2020 CX-30 4WD produces approximately 334 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 $2,300, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $750 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
AspirationNaturally Aspirated
TransmissionAutomatic (S6)
Drive Type4-Wheel Drive

Green Scorecard

CO2 Emissions334 g/mi
Start-Stop SystemNot Equipped
GHG Score5/10
Smog RatingN/A
Est. Annual Cost$2,300
5-Year Cost DeltaSave $750

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
26.7
Impact vs EPA
$-54
/ 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
$530/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
43.6%
Fuel & Electricity
Based on National Average rates ($3.50/gal)
$10,096
31.7%
Estimated Insurance
Based on vehicle class risk profile
$7,459
23.4%
State Registration Fees
Based on National Average DMV base rates
$400
1.3%
Total 5-Year Cost$31,815

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 #20V347000·2020-07-29
critical
Component: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

Mazda North American Operations (Mazda) is recalling certain 2020 CX-30 vehicles equipped with all-wheel drive. The evaporative vent hose for the fuel tank may be disconnected, possibly allowing fuel to leak from the charcoal canister vent at the rear of the vehicle.

Consequence & Remedy

Consequence: A fuel leak in the presence of an ignition source may increase the risk of a fire. Additionally, the engine may stall while driving, increasing the risk of a crash.

Remedy: Mazda will notify owners, and dealers will inspect the evaporative vent hose in the fuel tank. If the hose is disconnected, it will be reconnected and the charcoal canister with some related parts will be replaced. Repairs will be performed free of charge. The recall began July 29, 2020. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 4520F.

Campaign #20V346000·2020-07-24
critical
Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER

Mazda North American Operations (Mazda) is recalling certain 2020 CX-30 and Mazda3 vehicles. The front brake caliper mounting bolts may not have been tightened properly during assembly, possibly allowing the calipers to loosen.

Consequence & Remedy

Consequence: Loose brake calipers can reduce braking performance or interfere with wheel rotation, affecting vehicle handling. Either of these scenarios can increase the risk of a crash.

Remedy: Mazda will notify owners, and dealers will inspect the front brake caliper bolts, tightening them as necessary. If bolts are missing, the affected brake caliper will be replaced. Repairs will be performed free of charge. The recall began July 24, 2020. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 4420F.

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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

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Fuel Cost Analysis

Annual Fuel Cost$2,300
vs. Avg Vehicle (5 yrs)Save $750

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

Efficiency Breakdown

City24 MPG
Highway31 MPG
Combined26 MPG

Estimated Lifetime Carbon Footprint

(Based on 200,000 miles driven)

66.8 metric tons CO₂
Equivalent To:
🌳 83 tree seedlings grown for 10 yrs
✈️ 5.6 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.