2008 · Subcompact Car · Gas
2008 Mazda RX-8 MPG & fuel economy
The 2008 Mazda RX-8 is a subcompact car offered in 2 EPA-rated configurations. The most efficient version returns 19 MPG combined (16 city / 23 highway) on premium gasoline. Across the lineup, combined ratings range from 18 to 19 MPG. Efficiency is unchanged from the 2007 model. Among 49 subcompact cars rated for 2008, it ranks 37th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $3,118 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 2008 Mazda RX-8's fuel average is 8.1 km/L (12.4 L/100 km), or 19 MPG combined: 6.8 km/L in the city and 9.8 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 16 | 6.8 | 14.7 |
| Highway | 23 | 9.8 | 10.2 |
| Combined | 19 | 8.1 | 12.4 |
How it ranks among 2008 Subcompact Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
RX-8 MPG across model years
Full history →2 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 1.3L 2-cyl · 6-speed automatic RX-8 |
Gas | 16 MPG | 23 MPG | 19 MPG | — | $3,118 |
| RWD · 1.3L 2-cyl · 6-speed manual RX-8 |
Gas | 16 MPG | 22 MPG | 18 MPG | — | $3,292 |
Specs (most efficient configuration)
- Fuel
- Premium gasoline
- Engine / motor
- 1.3L 2-cyl
- Transmission
- 6-speed automatic
- Drivetrain
- RWD
- Passenger volume
- 89 cu ft
- Cargo volume
- 8 cu ft
- Tailpipe CO₂
- 468 g/mi
2008 Mazda RX-8 vs. rivals
Compare the 2008 RX-8
With any other car from any year, including other RX-8 model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 2008 Mazda RX-8?
Up to 19 MPG combined (16 city / 23 highway); ratings range from 18 to 19 MPG depending on configuration.
What fuel does the 2008 Mazda RX-8 use?
Premium gasoline (premium is required or recommended by the manufacturer).
What is the fuel average in km/L for the 2008 Mazda RX-8?
The 2008 Mazda RX-8's fuel average is 8.1 km/L (12.4 L/100 km), or 19 MPG combined: 6.8 km/L in the city and 9.8 km/L on the highway.
How much does it cost to fuel the 2008 Mazda RX-8 per year?
About $3,118 at 15,000 miles a year with $3.95/gal premium gas, or $20.79 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.