The Mercedes-Benz GLS 550 gas mileage is 16 to 16.5 miles per gallon as specified in our data below, organized by trim, option package, and model year.
For example, the 2017 Mercedes-Benz GLS 550 GLS GLS550 trim model has a combined gas mileage of 16 miles per gallon, while the 2019 Mercedes-Benz GLS 550 GLS GLS550 has a combined gas mileage of 16.5 miles per gallon.
In the city, the GLS 550 gas mileage is 14 miles per gallon.
On the highway, the GLS 550 gas mileage is 18 to 19 miles per gallon depending on the trim and model year.
Note: The gas mileage shown for hybrid vehicles is the miles per gallon equivalent.
Check out the Gas Mileage specifications for other makes and models.
2019 Mercedes-Benz GLS 550 Gas Mileage
The 2019 Mercedes-Benz GLS 550 gas mileage is 16.5 miles per gallon combined.
In the city, the 2019 GLS 550 gas mileage is 14 miles per gallon.
On the highway, the 2019 GLS 550 gas mileage is 19 miles per gallon.
2019 Mercedes-Benz GLS 550 Gas Mileage (Imperial)
| Trim |
Engine | Transmission | Drivetrain |
City | Highway | Combined Mileage |
| GLS GLS550 SUV |
4.7L | Twin Turbo | V8 | 9 Spd Auto w/OD | AWD |
14 city mpg | 19 hwy mpg | 16.5 combined mpg |
| GLS 550 4MATIC SUV |
4.7L | Twin Turbo | V8 | 9 Spd Auto w/OD | AWD |
14 city mpg | 19 hwy mpg | 16.5 combined mpg |
2019 Mercedes-Benz GLS 550 Gas Mileage (Metric)
| Trim |
Engine | Transmission | Drivetrain |
City | Highway | Combined Mileage |
| GLS GLS550 SUV |
4.7L | Twin Turbo | V8 | 9 Spd Auto w/OD | AWD |
17.0 city L/100 km | 12.0 hwy L/100 km | 14.0 combined L/100 km |
| GLS 550 4MATIC SUV |
4.7L | Twin Turbo | V8 | 9 Spd Auto w/OD | AWD |
17.0 city L/100 km | 12.0 hwy L/100 km | 14.0 combined L/100 km |
2018 Mercedes-Benz GLS 550 Gas Mileage
The 2018 Mercedes-Benz GLS 550 gas mileage is 16.5 miles per gallon combined.
In the city, the 2018 GLS 550 gas mileage is 14 miles per gallon.
On the highway, the 2018 GLS 550 gas mileage is 19 miles per gallon.
2018 Mercedes-Benz GLS 550 Gas Mileage (Imperial)
| Trim |
Engine | Transmission | Drivetrain |
City | Highway | Combined Mileage |
| GLS GLS550 SUV |
4.7L | Twin Turbo | V8 | 9 Spd Auto w/OD | AWD |
14 city mpg | 19 hwy mpg | 16.5 combined mpg |
2018 Mercedes-Benz GLS 550 Gas Mileage (Metric)
| Trim |
Engine | Transmission | Drivetrain |
City | Highway | Combined Mileage |
| GLS GLS550 SUV |
4.7L | Twin Turbo | V8 | 9 Spd Auto w/OD | AWD |
17.0 city L/100 km | 12.0 hwy L/100 km | 14.0 combined L/100 km |
2017 Mercedes-Benz GLS 550 Gas Mileage
The 2017 Mercedes-Benz GLS 550 gas mileage is 16 miles per gallon combined.
In the city, the 2017 GLS 550 gas mileage is 14 miles per gallon.
On the highway, the 2017 GLS 550 gas mileage is 18 miles per gallon.
2017 Mercedes-Benz GLS 550 Gas Mileage (Imperial)
| Trim |
Engine | Transmission | Drivetrain |
City | Highway | Combined Mileage |
| GLS GLS550 SUV |
4.7L | Twin Turbo | V8 | 9 Spd Auto w/OD | AWD |
14 city mpg | 18 hwy mpg | 16 combined mpg |
2017 Mercedes-Benz GLS 550 Gas Mileage (Metric)
| Trim |
Engine | Transmission | Drivetrain |
City | Highway | Combined Mileage |
| GLS GLS550 SUV |
4.7L | Twin Turbo | V8 | 9 Spd Auto w/OD | AWD |
17.0 city L/100 km | 13.0 hwy L/100 km | 15.0 combined L/100 km |
Mercedes-Benz GLS 550 Gas Mileage Data Brought To You By AutoPadre
Mercedes-Benz GLS 550 Gas Mileage Comparisons By Year