2004 · Midsize Car · Gas
2004 Mazda 6 MPG & fuel economy
The 2004 Mazda 6 is a midsize car offered in 4 EPA-rated configurations. The most efficient version returns 24 MPG combined (21 city / 29 highway) on regular gasoline. Across the lineup, combined ratings range from 19 to 24 MPG. Efficiency is unchanged from the 2003 model. Among 39 midsize cars rated for 2004, it ranks 6th for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $1,938 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 2004 Mazda 6's fuel average is 10.2 km/L (9.8 L/100 km), or 24 MPG combined: 8.9 km/L in the city and 12.3 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 21 | 8.9 | 11.2 |
| Highway | 29 | 12.3 | 8.1 |
| Combined | 24 | 10.2 | 9.8 |
How it ranks among 2004 Midsize Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
6 MPG across model years
Full history →4 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| FWD · 2.3L 4-cyl · 5-speed manual 6 |
Gas | 21 MPG | 29 MPG | 24 MPG | — | $1,938 |
| FWD · 2.3L 4-cyl · 4-speed automatic 6 |
Gas | 20 MPG | 26 MPG | 22 MPG | — | $2,114 |
| FWD · 3.0L 6-cyl · 5-speed manual 6 |
Gas | 17 MPG | 24 MPG | 20 MPG | — | $2,325 |
| FWD · 3.0L 6-cyl · 5-speed automatic 6 |
Gas | 17 MPG | 24 MPG | 19 MPG | — | $2,447 |
Specs (most efficient configuration)
- Fuel
- Regular gasoline
- Engine / motor
- 2.3L 4-cyl
- Transmission
- 5-speed manual
- Drivetrain
- FWD
- Passenger volume
- 96 cu ft
- Cargo volume
- 22 cu ft
- Tailpipe CO₂
- 370 g/mi
2004 Mazda 6 vs. rivals
Compare the 2004 6
With any other car from any year, including other 6 model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 2004 Mazda 6?
Up to 24 MPG combined (21 city / 29 highway); ratings range from 19 to 24 MPG depending on configuration.
What fuel does the 2004 Mazda 6 use?
Regular gasoline.
What is the fuel average in km/L for the 2004 Mazda 6?
The 2004 Mazda 6's fuel average is 10.2 km/L (9.8 L/100 km), or 24 MPG combined: 8.9 km/L in the city and 12.3 km/L on the highway.
How much does it cost to fuel the 2004 Mazda 6 per year?
About $1,938 at 15,000 miles a year with $3.10/gal regular gas, or $12.92 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.