1986 · Midsize Car · Diesel
1986 Mercedes-Benz 300 Diesel MPG & fuel economy
The 1986 Mercedes-Benz 300 Diesel is a midsize car with one EPA-rated configuration. The most efficient version returns 22 MPG combined (21 city / 24 highway) on diesel. That's up 1 MPG from the 1985 model. Among 37 midsize cars rated for 1986, it ranks 26th for lowest fuel cost. At 15,000 miles a year with $3.70/gal diesel fuel, it costs about $2,523 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 1986 Mercedes-Benz 300 Diesel's fuel average is 9.4 km/L (10.7 L/100 km), or 22 MPG combined: 8.9 km/L in the city and 10.2 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 21 | 8.9 | 11.2 |
| Highway | 24 | 10.2 | 9.8 |
| Combined | 22 | 9.4 | 10.7 |
How it ranks among 1986 Midsize Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
300 Diesel MPG across model years
Full history →1 EPA-rated configuration
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 3.0L 6-cyl · 4-speed automatic 300SDL |
Diesel | 21 MPG | 24 MPG | 22 MPG | — | $2,523 |
Specs (most efficient configuration)
- Fuel
- Diesel
- Engine / motor
- 3.0L 6-cyl
- Transmission
- 4-speed automatic
- Drivetrain
- RWD
- Tailpipe CO₂
- 463 g/mi
1986 Mercedes-Benz 300 Diesel vs. rivals
Compare the 1986 300 Diesel
With any other car from any year, including other 300 Diesel model years. Type a year to jump, e.g. "2015 Accord".
Same year, other powertrains: 1986 Mercedes-Benz 300 (19 MPG)
Frequently asked questions
What is the gas mileage of the 1986 Mercedes-Benz 300 Diesel?
Up to 22 MPG combined (21 city / 24 highway).
What fuel does the 1986 Mercedes-Benz 300 Diesel use?
Diesel.
What is the fuel average in km/L for the 1986 Mercedes-Benz 300 Diesel?
The 1986 Mercedes-Benz 300 Diesel's fuel average is 9.4 km/L (10.7 L/100 km), or 22 MPG combined: 8.9 km/L in the city and 10.2 km/L on the highway.
How much does it cost to fuel the 1986 Mercedes-Benz 300 Diesel per year?
About $2,523 at 15,000 miles a year with $3.70/gal diesel fuel, or $16.82 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.