1999 · Two-Seater · Gas
1999 Mercedes-Benz SL-Class MPG & fuel economy
The 1999 Mercedes-Benz SL-Class is a two-seater offered in 2 EPA-rated configurations. The most efficient version returns 17 MPG combined (14 city / 21 highway) on premium gasoline. Across the lineup, combined ratings range from 14 to 17 MPG. Efficiency is unchanged from the 1998 model. Among 16 two-seaters rated for 1999, it ranks 10th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $3,485 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 1999 Mercedes-Benz SL-Class's fuel average is 7.2 km/L (13.8 L/100 km), or 17 MPG combined: 6.0 km/L in the city and 8.9 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 14 | 6.0 | 16.8 |
| Highway | 21 | 8.9 | 11.2 |
| Combined | 17 | 7.2 | 13.8 |
How it ranks among 1999 Two-Seaters
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
SL-Class MPG across model years
Full history →2 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 5.0L 8-cyl · 5-speed automatic SL500 |
Gas | 14 MPG | 21 MPG | 17 MPG | — | $3,485 |
| RWD · 6.0L 12-cyl · 5-speed automatic SL600 |
Gas | 12 MPG | 17 MPG | 14 MPG | — | $4,232 |
Specs (most efficient configuration)
- Fuel
- Premium gasoline
- Engine / motor
- 5.0L 8-cyl
- Transmission
- 5-speed automatic
- Drivetrain
- RWD
- Tailpipe CO₂
- 523 g/mi
1999 Mercedes-Benz SL-Class vs. rivals
Compare the 1999 SL-Class
With any other car from any year, including other SL-Class model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 1999 Mercedes-Benz SL-Class?
Up to 17 MPG combined (14 city / 21 highway); ratings range from 14 to 17 MPG depending on configuration.
What fuel does the 1999 Mercedes-Benz SL-Class use?
Premium gasoline (premium is required or recommended by the manufacturer).
What is the fuel average in km/L for the 1999 Mercedes-Benz SL-Class?
The 1999 Mercedes-Benz SL-Class's fuel average is 7.2 km/L (13.8 L/100 km), or 17 MPG combined: 6.0 km/L in the city and 8.9 km/L on the highway.
How much does it cost to fuel the 1999 Mercedes-Benz SL-Class per year?
About $3,485 at 15,000 miles a year with $3.95/gal premium gas, or $23.24 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.