2018 Mazda 6Fuel Economy & MPG Ratings
Gasoline Midsize CarsFront-Wheel Drive
City
26
MPG
Highway
35
MPG
Combined
29
MPG
Real-World MPG
Based on 4 owner reports via EPA fueleconomy.gov
32.4MPG average+11.7% vs EPA label
EPA combined: 29 MPG · Owner reported avg: 32.4 MPG
Range: 28–35 MPG
Driving mix: City 16% / Highway 84%
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 32.4 real world MPG based on 4 owner reports. EPA combined rating is 29 MPG.
Trim Comparison
Automatic (S6)
Regular
City
26
Hwy
35
Comb
29
Fuel cost: $2,350/yr
Manual 6-spd
Regular
City
24
Hwy
33
Comb
27
Fuel cost: $2,500/yr
Automatic (S6)
Regular
City
23
Hwy
31
Comb
26
Fuel cost: $2,600/yr
| Trim | Engine | City | Hwy | Combined | Fuel Cost/yr |
|---|---|---|---|---|---|
| Automatic (S6) | Regular | 26 | 35 | 29 | $2,350 |
| Manual 6-spd | Regular | 24 | 33 | 27 | $2,500 |
| Automatic (S6) | Regular | 23 | 31 | 26 | $2,600 |
Annual Fuel Cost
$2,350
Based on gasoline at $3.67/gal, 15,000 miles/year
5-Year Fuel Savings
$250
vs. average new vehicle
EPA Fuel Economy Score: 6/10
GHG Score: 6/10
Environment
- CO₂ Tailpipe Emissions
- 302 g/mile
- Annual Petroleum Consumption
- 10.3 barrels
Specifications
- Engine
- 2.5L 4-cyl
- Transmission
- 6-speed Manual
- Drivetrain
- FWD
- 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
- 2.5L, 4-cylinder
- Induction Type
- Direct Injection
- Fuel Type
- Regular Gasoline
Annual Fuel Cost by State
Prices as of week ending May 18, 2026 · Source: EIA
National AvgEPA default
$4.490/gal$2,322/yr
California
$5.957/gal$3,081/yr
Texas
$3.888/gal$2,011/yr
Florida
$4.136/gal$2,139/yr
New York
$4.522/gal$2,339/yr
Ohio
$4.510/gal$2,333/yr
Washington
$5.591/gal$2,892/yr
Colorado
$4.618/gal$2,389/yr
Minnesota
$4.344/gal$2,247/yr
Massachusetts
$4.448/gal$2,301/yr
| State | Gas Price | Annual Cost | vs. National Avg |
|---|---|---|---|
| National AvgEPA default | $4.490/gal | $2,322/yr | — |
| California | $5.957/gal | $3,081/yrHIGHEST | +$759 |
| Texas | $3.888/gal | $2,011/yrLOWEST | $-311 |
| Florida | $4.136/gal | $2,139/yr | $-183 |
| New York | $4.522/gal | $2,339/yr | +$17 |
| Ohio | $4.510/gal | $2,333/yr | +$11 |
| Washington | $5.591/gal | $2,892/yr | +$570 |
| Colorado | $4.618/gal | $2,389/yr | +$67 |
| Minnesota | $4.344/gal | $2,247/yr | $-75 |
| Massachusetts | $4.448/gal | $2,301/yr | $-21 |
Calculated at 15,000 miles/year (EPA standard assumption) using 29 MPG combined. Regular gasoline prices. Actual costs vary.
Related
Mazda 6 MPG History
See how this model's fuel economy changed by year