1985 Mercedes-Benz 300SDFuel Economy & MPG Ratings
Diesel Compact CarsRear-Wheel Drive
City
19
MPG
Highway
23
MPG
Combined
21
MPG
Real-World MPG
Based on 10 owner reports via EPA fueleconomy.gov
26.9MPG average+28.1% vs EPA label
EPA combined: 21 MPG · Owner reported avg: 26.9 MPG
Range: 25–32 MPG
Driving mix: City 33% / Highway 67%
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 26.9 real world MPG based on 10 owner reports. EPA combined rating is 21 MPG.
Trim Comparison
Automatic 4-spd
Diesel Diesel
City
19
Hwy
23
Comb
21
Fuel cost: $4,050/yr
Automatic 4-spd
Diesel Diesel
City
19
Hwy
20
Comb
19
Fuel cost: $4,450/yr
| Trim | Engine | City | Hwy | Combined | Fuel Cost/yr |
|---|---|---|---|---|---|
| Automatic 4-spd | Diesel Diesel | 19 | 23 | 21 | $4,050 |
| Automatic 4-spd | Diesel Diesel | 19 | 20 | 19 | $4,450 |
Annual Fuel Cost
$4,050
Based on gasoline at $3.67/gal, 15,000 miles/year
5-Year Fuel Savings
$-8,250
vs. average new vehicle
EPA Fuel Economy Score: -1/10
GHG Score: -1/10
Environment
- CO₂ Tailpipe Emissions
- 485 g/mile
- Annual Petroleum Consumption
- 17.0 barrels
Specifications
- Engine
- 3L 5-cyl
- Transmission
- 4-speed Automatic
- 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
- 3L, 5-cylinder
- Induction Type
- (DSL,TRBO)
- Fuel Type
- Diesel
Annual Fuel Cost by State
Prices as of week ending May 18, 2026 · Source: EIA
National AvgEPA default
$4.490/gal$3,207/yr
California
$5.957/gal$4,255/yr
Texas
$3.888/gal$2,777/yr
Florida
$4.136/gal$2,954/yr
New York
$4.522/gal$3,230/yr
Ohio
$4.510/gal$3,221/yr
Washington
$5.591/gal$3,994/yr
Colorado
$4.618/gal$3,299/yr
Minnesota
$4.344/gal$3,103/yr
Massachusetts
$4.448/gal$3,177/yr
| State | Gas Price | Annual Cost | vs. National Avg |
|---|---|---|---|
| National AvgEPA default | $4.490/gal | $3,207/yr | — |
| California | $5.957/gal | $4,255/yrHIGHEST | +$1,048 |
| Texas | $3.888/gal | $2,777/yrLOWEST | $-430 |
| Florida | $4.136/gal | $2,954/yr | $-253 |
| New York | $4.522/gal | $3,230/yr | +$23 |
| Ohio | $4.510/gal | $3,221/yr | +$14 |
| Washington | $5.591/gal | $3,994/yr | +$787 |
| Colorado | $4.618/gal | $3,299/yr | +$92 |
| Minnesota | $4.344/gal | $3,103/yr | $-104 |
| Massachusetts | $4.448/gal | $3,177/yr | $-30 |
Calculated at 15,000 miles/year (EPA standard assumption) using 21 MPG combined. Regular gasoline prices. Actual costs vary.
Related
Mercedes-Benz 300SD MPG History
See how this model's fuel economy changed by year