2014 Mercedes-Benz S550Fuel Economy & MPG Ratings
Gasoline Large CarsRear-Wheel Drive
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City
17
MPG
Highway
26
MPG
Combined
20
MPG
Real-World MPG
Based on 1 owner report via EPA fueleconomy.gov
18.0MPG average-10.0% vs EPA label
EPA combined: 20 MPG · Owner reported avg: 18.0 MPG
Driving mix: City 70% / Highway 30%
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 18.0 real world MPG based on 1 owner report. EPA combined rating is 20 MPG.
Trim Comparison
Automatic 7-spd
Premium
City
17
Hwy
26
Comb
20
Fuel cost: $4,100/yr
| Trim | Engine | City | Hwy | Combined | Fuel Cost/yr |
|---|---|---|---|---|---|
| Automatic 7-spd | Premium | 17 | 26 | 20 | $4,100 |
Annual Fuel Cost
$4,100
Based on gasoline at $3.67/gal, 15,000 miles/year
5-Year Fuel Savings
$-8,500
vs. average new vehicle
EPA Fuel Economy Score: 5/10
GHG Score: 5/10
Environment
- CO₂ Tailpipe Emissions
- 444 g/mile
- Annual Petroleum Consumption
- 14.9 barrels
Specifications
- Engine
- 4.7L 8-cyl
- Transmission
- 7-speed Automatic
- Drivetrain
- RWD
- Body Style
- Sedan
Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.
Engine & Efficiency Details
Source: EPA fueleconomy.gov
- Engine Size
- 4.7L, 8-cylinder
- Induction Type
- Direct Injection
- Efficiency Tech
- Auto Start-Stop
- 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$3,368/yr
California
$5.957/gal$4,468/yr
Texas
$3.888/gal$2,916/yr
Florida
$4.136/gal$3,102/yr
New York
$4.522/gal$3,392/yr
Ohio
$4.510/gal$3,383/yr
Washington
$5.591/gal$4,193/yr
Colorado
$4.618/gal$3,464/yr
Minnesota
$4.344/gal$3,258/yr
Massachusetts
$4.448/gal$3,336/yr
| State | Gas Price | Annual Cost | vs. National Avg |
|---|---|---|---|
| National AvgEPA default | $4.490/gal | $3,368/yr | — |
| California | $5.957/gal | $4,468/yrHIGHEST | +$1,100 |
| Texas | $3.888/gal | $2,916/yrLOWEST | $-452 |
| Florida | $4.136/gal | $3,102/yr | $-266 |
| New York | $4.522/gal | $3,392/yr | +$24 |
| Ohio | $4.510/gal | $3,383/yr | +$15 |
| Washington | $5.591/gal | $4,193/yr | +$825 |
| Colorado | $4.618/gal | $3,464/yr | +$96 |
| Minnesota | $4.344/gal | $3,258/yr | $-110 |
| Massachusetts | $4.448/gal | $3,336/yr | $-32 |
Calculated at 15,000 miles/year (EPA standard assumption) using 20 MPG combined. Regular gasoline prices. Actual costs vary.
Related
Mercedes-Benz S550 MPG History
See how this model's fuel economy changed by year