MPGTerminal
32/100
1984Two SeatersRegular

1984 Mazda RX-7

EPA ID: 27699
15
City MPG
17
Combined MPG
17MPG· Below Avg
21
Highway MPG

Fuel Economy Overview

The 1984 Mazda RX-7 achieves an EPA-estimated 17 MPG in combined city and highway driving, with 15 MPG in the city and 21 MPG on the highway. Powered by a 1.3L 2-cylinder engine paired with a manual 5-spd, this two seaters .

In terms of environmental impact, the 1984 RX-7 produces approximately 523 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 RX-7 has higher-than-average emissions in this regard.

The estimated annual fuel cost for this vehicle is $3,500, based on 15,000 miles of driving per year and current national average fuel prices. Compared to the average new vehicle, you would save $6,750 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 ClassTwo Seaters
Fuel TypeRegular
Engine1.3L 2-cyl
AspirationNaturally Aspirated
TransmissionManual 5-spd
Drive TypeN/A

Green Scorecard

CO2 Emissions523 g/mi
Start-Stop SystemNot Equipped
GHG Score-1/10
Smog RatingN/A
Est. Annual Cost$3,500
5-Year Cost DeltaSave $6,750

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
17.2
Impact vs EPA
$-38
/ year
💨

Aerodynamic Speed Penalty

EPA highway tests average roughly 48 mph. Driving at 75 mph increases aerodynamic drag exponentially. Expect your real-world highway fuel economy to drop by roughly 15-20% at interstate speeds.

5-Year Total Cost of Ownership

Estimated Monthly Cost
$1,107/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
$33,000
49.7%
Fuel & Electricity
Based on National Average rates ($3.50/gal)
$15,441
23.3%
Estimated Insurance
Based on vehicle class risk profile
$17,550
26.4%
State Registration Fees
Based on National Average DMV base rates
$400
0.6%
Total 5-Year Cost$66,391

Recall Intelligence

✓ No recalls have been issued for this vehicle configuration.

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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 RX-7 configurations.

View Model History

Similar 1984 Two Seaters Alternatives

1984 Mazda RX-7

1.1L 2-cyl

17MPG
City: 15Hwy: 21$3,500/yr

1984 Mazda RX-7

1.1L 2-cyl

17MPG
City: 15Hwy: 21$3,500/yr

1984 Mazda RX-7

1.3L 2-cyl

17MPG
City: 15Hwy: 21$3,500/yr

1984 Mazda RX-7

1.1L 2-cyl

17MPG
City: 15Hwy: 21$3,500/yr

1984 Mazda RX-7

1.1L 2-cyl

17MPG
City: 15Hwy: 21$3,500/yr

1984 Nissan 300ZX

3L 6-cyl

17MPG
City: 15Hwy: 20$3,500/yr

Fuel Cost Analysis

Annual Fuel Cost$3,500
vs. Avg Vehicle (5 yrs)Save $6,750

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

Efficiency Breakdown

City15 MPG
Highway21 MPG
Combined17 MPG

Estimated Lifetime Carbon Footprint

(Based on 200,000 miles driven)

104.6 metric tons CO₂
Equivalent To:
🌳 129 tree seedlings grown for 10 yrs
✈️ 8.7 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.