1990 Mazda RX-7
Fuel Economy Overview
The 1990 Mazda RX-7 achieves an EPA-estimated 17 MPG in combined city and highway driving, with 15 MPG in the city and 22 MPG on the highway. Powered by a 1.3L 2-cylinder turbocharged engine paired with a manual 5-spd, this two seaters features Rear-Wheel Drive drive.
In terms of environmental impact, the 1990 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
Green Scorecard
Personalized Commute CalculatorEPA defaults to 55% City / 45% Hwy
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.
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
Recall Intelligence
THE RAIL OF THE AUTOMATIC SHOULDER BELT CAN WEAR SUFFICIENTLY SUCH THAT THE CABLE WHICH RETRACTS THE BUCKLE ASSEMBLY WILL BECOME JAMMED IN THE RAIL RENDERING THE SHOULDER BELT INOPERATIVE.
Consequence & Remedy
Consequence: IN THE EVENT OF A VEHICLE COLLISION, THE OCCUPANT WOULD NOT BE ADEQUATELY RESTRAINED INCREASING THE RISK OF PERSONAL INJURY.
Remedy: DEALERS WILL REPLACE INOPERATIVE SHOULDER BELTS. MAZDA HAS EXTENDED THE WARRANTY COVERAGE ON THE DRIVER AND PASSENGER AUTOMATIC SHOULDER BELT RAIL AND MOTOR FOR THE LIFE OF THE VEHICLE.
THREADED INFLATOR COMPONENTS MAY HAVE BEEN DAMAGED DURING ASSEMBLY WHICH MAY ALLOW COMPONENTS TO SEPARATE WHEN INFLATOR RECEIVES A SIGNAL TO DEPLOY THE AIR BAG.
Consequence & Remedy
Consequence: INFLATOR COMPONENT SEPARATION ALLOWS HOT COMBUSTION GASES TO ESCAPE INTO THE PASSENGER COMPARTMENT WHICH COULD RESULT IN INJURIES TO VEHICLE OCCUPANTS.
Remedy: REPLACE AIR BAG MODULES CONTAINING POTENTIALLY DEFECTIVE INFLATORS.
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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.
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Fuel Cost Analysis
Based on 15,000 miles/year and current fuel prices.
Efficiency Breakdown
Estimated Lifetime Carbon Footprint
(Based on 200,000 miles driven)