2005 Mazda RX-8Fuel Economy & MPG Ratings
Gasoline Subcompact CarsRear-Wheel Drive
City
16
MPG
Highway
22
MPG
Combined
18
MPG
Real-World MPG
Based on 16 owner reports via EPA fueleconomy.gov
17.9MPG average-0.4% vs EPA label
EPA combined: 18 MPG · Owner reported avg: 17.9 MPG
Range: 15–22 MPG
Driving mix: City 48% / Highway 52%
Source: EPA fueleconomy.gov “Your MPG” owner submissions. Real-world results vary by driver behavior, conditions, and equipment.
Owner reported MPG for this vehicle averages 17.9 real world MPG based on 16 owner reports. EPA combined rating is 18 MPG.
Trim Comparison
Manual 6-spd
Premium
City
16
Hwy
22
Comb
18
Fuel cost: $4,550/yr
Automatic (S4)
Premium
City
16
Hwy
22
Comb
18
Fuel cost: $4,550/yr
| Trim | Engine | City | Hwy | Combined | Fuel Cost/yr |
|---|---|---|---|---|---|
| Manual 6-spd | Premium | 16 | 22 | 18 | $4,550 |
| Automatic (S4) | Premium | 16 | 22 | 18 | $4,550 |
Annual Fuel Cost
$4,550
Based on gasoline at $3.67/gal, 15,000 miles/year
5-Year Fuel Savings
$-10,750
vs. average new vehicle
EPA Fuel Economy Score: -1/10
GHG Score: -1/10
Environment
- CO₂ Tailpipe Emissions
- 494 g/mile
- Annual Petroleum Consumption
- 16.5 barrels
Specifications
- Engine
- 1.3L 2-cyl
- Transmission
- 6-speed Manual
- Drivetrain
- RWD
- Body Style
- Sedan
- GVWR
- Class 1 (≤6,000 lbs)
Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.
Engine & Efficiency Details
Source: EPA fueleconomy.gov
- Engine Size
- 1.3L, 2-cylinder
- Fuel Type
- Premium Gasoline
Annual Fuel Cost by State
Prices as of week ending May 18, 2026 · Source: EIA
National AvgEPA default
$4.490/gal$3,742/yr
California
$5.957/gal$4,964/yr
Texas
$3.888/gal$3,240/yr
Florida
$4.136/gal$3,447/yr
New York
$4.522/gal$3,768/yr
Ohio
$4.510/gal$3,758/yr
Washington
$5.591/gal$4,659/yr
Colorado
$4.618/gal$3,848/yr
Minnesota
$4.344/gal$3,620/yr
Massachusetts
$4.448/gal$3,707/yr
| State | Gas Price | Annual Cost | vs. National Avg |
|---|---|---|---|
| National AvgEPA default | $4.490/gal | $3,742/yr | — |
| California | $5.957/gal | $4,964/yrHIGHEST | +$1,222 |
| Texas | $3.888/gal | $3,240/yrLOWEST | $-502 |
| Florida | $4.136/gal | $3,447/yr | $-295 |
| New York | $4.522/gal | $3,768/yr | +$26 |
| Ohio | $4.510/gal | $3,758/yr | +$16 |
| Washington | $5.591/gal | $4,659/yr | +$917 |
| Colorado | $4.618/gal | $3,848/yr | +$106 |
| Minnesota | $4.344/gal | $3,620/yr | $-122 |
| Massachusetts | $4.448/gal | $3,707/yr | $-35 |
Calculated at 15,000 miles/year (EPA standard assumption) using 18 MPG combined. Regular gasoline prices. Actual costs vary.
Related
Mazda RX-8 MPG History
See how this model's fuel economy changed by year